400道左右的五年级下册数学口算题，最好有答案哦 五年级下册数学口算题带答案

\u4e94\u5e74\u7ea7\u4e0a\u518c\u6570\u5b66\u53e3\u7b97\u9898400\u9053\u5e26\u7b54\u6848 \u6025\uff01\uff01

17\u00d740\uff1d680, 100\uff0d63\uff1d37, 3.2\uff0b1.68\uff1d4.88, 2.8\u00d70.4\uff1d 1.12
14\uff0d7.4\uff1d6.6, 1.92\u00f70.04\uff1d48, 0.32\u00d7500\uff1d160, 0.65\uff0b4.35\uff1d 5
10\uff0d5.4\uff1d4.6, 4\u00f720\uff1d0.2, 3.5\u00d7200\uff1d700, 1.5\uff0d0.06\uff1d1.44
0.75\u00f715\uff1d0.05, 0.4\u00d70.8\uff1d0.32, 4\u00d70.25\uff1d1, 0.36\uff0b1.54\uff1d2
1.01\u00d799\uff1d99.99, 420\u00f735\uff1d12, 25\u00d712\uff1d300, 135\u00f70.5\uff1d270
3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4
1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4
3/10 +1/5 =1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1.5
0.51\u00f717\uff1d0.03, 32.8\uff0b19\uff1d51.8, 5.2\u00f71.3\uff1d4, 1.6\u00d70.4\uff1d 0.64
4.9\u00d70.7\uff1d3.43, 1\u00f75\uff1d0.2, 6\u00f712\uff1d0.5, 0.87\uff0d0.49\uff1d0.38
1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)
2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26-1.5)
6.286+198
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2\u00d73/5
14.3.375+5.75+2.25+6.625
15.1001\uff0d9036\u00f718
16.3.8\u00d75.25+14.5
17.2.1*4.3+5.7*2.1
18.30\u00d71/3
19.102*45-328
20.2/3\u00d712
21.2.8*3.1+17.6/8
22.3/5\u00d75/6
23.(50-12.5)/2.5
24.2/5\u00d71/3
25.6110*47+639
26.1/2-1/6
27.3.5*2.7-52.2/18
28.1/7\u00d71/5
29.3.375*0.97+0.97*6.625
30.25\u00d74/5
31.6.54+2.4+3.46+0.6
32.5/6-1/2
33.95.6*1.8+95.6*8.2
34.1/2\u00d71/5
35.600-420/12
36.344/3.6-5.4*0.25
37.16/2+30/2+90/6
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+5.96
45.403\u00f713\u00d727
46.1.5\u00d74.2\uff0d0.75\u00f70.25
47.3.27\u00d74 +3.27\u00d75.7
48.\uff081.2+ 1.8\uff09\u00d74.51025\uff0d768\u00f732
49.0.25\u00d780\uff0d0.45\u00f70.9
50.1025\uff0d768\u00f732
51.0.25*2.69*4
52.2348+275*16
53.2/9*15/8-1/12*9/5
54.2.4+2.4*(5.375-3.375)
55.645-45*12
56.0.15+1.2/0.24-0.45
57.3.75-(2.35+0.25/1.25)
58.76*1/4+23*25/100+0.25
59.10-2.87-7.13
60.0.96+9.6*9.9
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
68.640+128*45
69.8.2*1.6-0.336/4.2
70.400*(0.62+0.08)


2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18


123+25=148 123-35=88 56\u00d77=392 135\u00f75=27
248+89=337 ... 146-23=123 ... 155\u00d75=775 ... 456-12=38...
456+45=501 ...546-457=89 ... 45\u00d710=451 ... 564-12=47...
879+54=933 ...896-546=350 ...56\u00d712=672.... 45-5=9...
457+456=913...




\u8131\u5f0f\u8ba1\u7b97
30.8\u00f7[14\uff0d(9.85\uff0b1.07)]
[60\uff0d(9.5\uff0b28.9)]\u00f70.18
2.881\u00f70.43\uff0d0.24\u00d73.5
20\u00d7[(2.44\uff0d1.8)\u00f70.4\uff0b0.15]
28-(3.4+1.25\u00d72.4)
2.55\u00d77.1+2.45\u00d77.1
777\u00d79+1111\u00d73
0.8\u00d7\u301415.5-(3.21+5.79)\u3015
\uff0831.8+3.2\u00d74\uff09\u00f75
31.5\u00d74\u00f7(6+3)
0.64\u00d725\u00d77.8+2.2
2\u00f72.5+2.5\u00f72
194\uff0d64.8\u00f71.8\u00d70.9
36.72\u00f74.25\u00d79.9
5180\uff0d705\u00d76
24\u00f72.4\uff0d2.5\u00d70.8
(4121+2389)\u00f77
671\u00d715-974
469\u00d712+1492
405\u00d7(3213-3189)
3.416\u00f7\uff080.016\u00d735\uff09
0.8\u00d7[(10\uff0d6.76)\u00f71.2]
19.4\u00d76.1\u00d72.3
5.67\u00d70.2-0.62
18.1\u00d70.92+3.93
0.0430.24+0.875
0.4\u00d70.7\u00d70.25
0.75\u00d7102 100-56.23
0.78+5.436+1
4.07\u00d70.86+9.12.5
30.8\u00f7[14\uff0d(9.85\uff0b1.07)]
[60\uff0d(9.5\uff0b28.9)]\u00f70.18
2.881\u00f70.43\uff0d0.24\u00d73.5
20\u00d7[(2.44\uff0d1.8)\u00f70.4\uff0b0.15]
28-(3.4+1.25\u00d72.4)
2.55\u00d77.1+2.45\u00d77.1
777\u00d79+1111\u00d73
0.8\u00d7\u301415.5-(3.21+5.79)\u3015
\uff0831.8+3.2\u00d74\uff09\u00f75
31.5\u00d74\u00f7(6+3)
0.64\u00d725\u00d77.8+2.2
2\u00f72.5+2.5\u00f72
194\uff0d64.8\u00f71.8\u00d70.9
36.72\u00f74.25\u00d79.9
5180\uff0d705\u00d76
24\u00f72.4\uff0d2.5\u00d70.8
(4121+2389)\u00f77
671\u00d715-974
469\u00d712+1492
405\u00d7(3213-3189)
3.416\u00f7\uff080.016\u00d735\uff09
0.8\u00d7[(10\uff0d6.76)\u00f71.2]
19.4\u00d76.1\u00d72.3 5.67\u00d70.2-0.62

18.1\u00d70.92+3.93 0.0430.24+0.875

0.4\u00d70.7\u00d70.25 0.75\u00d7102 100-56.23

0.78+5.436+1 4.07\u00d70.86+9.12.5





\u7b80\u7b97
\u662f\u4e58\u53f7 /\u662f\u9664\u53f7
0.3*2.5*0.4
50*0.13*0.2
0.8*630*0.125
0.78*101
1.5*102
9.8*25
1.2*2.5+0.8*2.5
1.25*0.7*0.8
0.038*5*2.1
3.8+4.5+6.2
93/0.31/3
3.25\uff0d0.84-0.16
88*0.25*4
2.8*3.6+1.4*2.8
63*10.1
\uff083.2+0.128\uff09/0.8
9.83*1.5+6.17*1.5
10.1*87
312*4+188*4
0.135*500*0.2
6.3+0.84+3.7+8.16
18.75-0.43-4.57
0.25*0.03*4
13.7*0.25*8
2.65*1.7+1.35*1.7
32.8+5.6+7.2
\uff082.5+0.25\uff09*0.4
8*\uff082.5*0.25\uff09
8.4*0.2+1.6*0.2
1.25*0.8*0.5
\uff081.5+0.25\uff09*0.4
1.2*0.4+1.3*0.4





\u65b9\u7a0b
9+6x=14
x+9x=4+7
2x+9=17
8-4x=6
6x-7=12
7x-9=8
x-56=1
8-7x=1
x-30=12
6x-21=21
6x-3=6
9x=18
4x-18=13
5x+9=11
6-2x=11
x+4+8=23
7x-12=8
X-5.7=2.15
15 5X-2X=18
3X 0.7=5
x\uff0b13\uff1d33
3 \uff0d 5x\uff1d80
1.8 +6x\uff1d54
6.7x \uff0d60.3\uff1d6.7
9 \uff0b4x \uff1d40
2x+8=16
3.5\u00d72= 4.2 x
26\u00d71.5= 2x
0.5\u00d716\u201516\u00d70.2=4x
9.25\uff0dX=0.403
16.9\u00f7X=0.3
X\u00f70.5=2.6
3\uff0d5x\uff1d80
1.8-6x\uff1d54
6.7x\uff0d60.3\uff1d6.7
9 \uff0b4x\uff1d40
0.2x\uff0d0.4\uff0b0.5\uff1d3.7
9.4x\uff0d0.4x\uff1d16.2
12\uff0d4x\uff1d20
1/3x\uff0b5/6x\uff1d1.4
12x\uff0b34x=1
18x\uff0d14x=12
23 x\uff0d5\u00d714=14
12\uff0b34x=56
22\uff0d14x=12
23x-14x=14
x\uff0b14x=65
23x=14x\uff0b14
30x12x\uff0d14x=1
x-0.7x=3.6
\u8fd9\u662f\u6211\u81ea\u5df1\u6253\u4e0a\u53bb\u7684\u6284\u88ad\u8005\u5fc5\u6b7b

17\u00d740\uff1d680, 100\uff0d63\uff1d37, 3.2\uff0b1.68\uff1d4.88, 2.8\u00d70.4\uff1d 1.12
14\uff0d7.4\uff1d6.6, 1.92\u00f70.04\uff1d48, 0.32\u00d7500\uff1d160, 0.65\uff0b4.35\uff1d 5
10\uff0d5.4\uff1d4.6, 4\u00f720\uff1d0.2, 3.5\u00d7200\uff1d700, 1.5\uff0d0.06\uff1d1.44
0.75\u00f715\uff1d0.05, 0.4\u00d70.8\uff1d0.32, 4\u00d70.25\uff1d1, 0.36\uff0b1.54\uff1d2
1.01\u00d799\uff1d99.99, 420\u00f735\uff1d12, 25\u00d712\uff1d300, 135\u00f70.5\uff1d270
3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4
1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4
3/10 +1/5 =1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1.5
0.51\u00f717\uff1d0.03, 32.8\uff0b19\uff1d51.8, 5.2\u00f71.3\uff1d4, 1.6\u00d70.4\uff1d 0.64
4.9\u00d70.7\uff1d3.43, 1\u00f75\uff1d0.2, 6\u00f712\uff1d0.5, 0.87\uff0d0.49\uff1d0.38
1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)
2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26-1.5)
6.286+198
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2\u00d73/5
14.3.375+5.75+2.25+6.625
15.1001\uff0d9036\u00f718
16.3.8\u00d75.25+14.5
17.2.1*4.3+5.7*2.1
18.30\u00d71/3
19.102*45-328
20.2/3\u00d712
21.2.8*3.1+17.6/8
22.3/5\u00d75/6
23.(50-12.5)/2.5
24.2/5\u00d71/3
25.6110*47+639
26.1/2-1/6
27.3.5*2.7-52.2/18
28.1/7\u00d71/5
29.3.375*0.97+0.97*6.625
30.25\u00d74/5
31.6.54+2.4+3.46+0.6
32.5/6-1/2
33.95.6*1.8+95.6*8.2
34.1/2\u00d71/5
35.600-420/12
36.344/3.6-5.4*0.25
37.16/2+30/2+90/6
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+5.96
45.403\u00f713\u00d727
46.1.5\u00d74.2\uff0d0.75\u00f70.25
47.3.27\u00d74 +3.27\u00d75.7
48.\uff081.2+ 1.8\uff09\u00d74.51025\uff0d768\u00f732
49.0.25\u00d780\uff0d0.45\u00f70.9
50.1025\uff0d768\u00f732
51.0.25*2.69*4
52.2348+275*16
53.2/9*15/8-1/12*9/5
54.2.4+2.4*(5.375-3.375)
55.645-45*12
56.0.15+1.2/0.24-0.45
57.3.75-(2.35+0.25/1.25)
58.76*1/4+23*25/100+0.25
59.10-2.87-7.13
60.0.96+9.6*9.9
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
68.640+128*45
69.8.2*1.6-0.336/4.2
70.400*(0.62+0.08)


2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18


123+25=148 123-35=88 56\u00d77=392 135\u00f75=27
248+89=337 ... 146-23=123 ... 155\u00d75=775 ... 456-12=38...
456+45=501 ...546-457=89 ... 45\u00d710=451 ... 564-12=47...
879+54=933 ...896-546=350 ...56\u00d712=672.... 45-5=9...
457+456=913...




\u8131\u5f0f\u8ba1\u7b97
30.8\u00f7[14\uff0d(9.85\uff0b1.07)]
[60\uff0d(9.5\uff0b28.9)]\u00f70.18
2.881\u00f70.43\uff0d0.24\u00d73.5
20\u00d7[(2.44\uff0d1.8)\u00f70.4\uff0b0.15]
28-(3.4+1.25\u00d72.4)
2.55\u00d77.1+2.45\u00d77.1
777\u00d79+1111\u00d73
0.8\u00d7\u301415.5-(3.21+5.79)\u3015
\uff0831.8+3.2\u00d74\uff09\u00f75
31.5\u00d74\u00f7(6+3)
0.64\u00d725\u00d77.8+2.2
2\u00f72.5+2.5\u00f72
194\uff0d64.8\u00f71.8\u00d70.9
36.72\u00f74.25\u00d79.9
5180\uff0d705\u00d76
24\u00f72.4\uff0d2.5\u00d70.8
(4121+2389)\u00f77
671\u00d715-974
469\u00d712+1492
405\u00d7(3213-3189)
3.416\u00f7\uff080.016\u00d735\uff09
0.8\u00d7[(10\uff0d6.76)\u00f71.2]
19.4\u00d76.1\u00d72.3
5.67\u00d70.2-0.62
18.1\u00d70.92+3.93
0.0430.24+0.875
0.4\u00d70.7\u00d70.25
0.75\u00d7102 100-56.23
0.78+5.436+1
4.07\u00d70.86+9.12.5
30.8\u00f7[14\uff0d(9.85\uff0b1.07)]
[60\uff0d(9.5\uff0b28.9)]\u00f70.18
2.881\u00f70.43\uff0d0.24\u00d73.5
20\u00d7[(2.44\uff0d1.8)\u00f70.4\uff0b0.15]
28-(3.4+1.25\u00d72.4)
2.55\u00d77.1+2.45\u00d77.1
777\u00d79+1111\u00d73
0.8\u00d7\u301415.5-(3.21+5.79)\u3015
\uff0831.8+3.2\u00d74\uff09\u00f75
31.5\u00d74\u00f7(6+3)
0.64\u00d725\u00d77.8+2.2
2\u00f72.5+2.5\u00f72
194\uff0d64.8\u00f71.8\u00d70.9
36.72\u00f74.25\u00d79.9
5180\uff0d705\u00d76
24\u00f72.4\uff0d2.5\u00d70.8
(4121+2389)\u00f77
671\u00d715-974
469\u00d712+1492
405\u00d7(3213-3189)
3.416\u00f7\uff080.016\u00d735\uff09
0.8\u00d7[(10\uff0d6.76)\u00f71.2]
19.4\u00d76.1\u00d72.3 5.67\u00d70.2-0.62

18.1\u00d70.92+3.93 0.0430.24+0.875

0.4\u00d70.7\u00d70.25 0.75\u00d7102 100-56.23

0.78+5.436+1 4.07\u00d70.86+9.12.5





\u7b80\u7b97
\u662f\u4e58\u53f7 /\u662f\u9664\u53f7
0.3*2.5*0.4
50*0.13*0.2
0.8*630*0.125
0.78*101
1.5*102
9.8*25
1.2*2.5+0.8*2.5
1.25*0.7*0.8
0.038*5*2.1
3.8+4.5+6.2
93/0.31/3
3.25\uff0d0.84-0.16
88*0.25*4
2.8*3.6+1.4*2.8
63*10.1
\uff083.2+0.128\uff09/0.8
9.83*1.5+6.17*1.5
10.1*87
312*4+188*4
0.135*500*0.2
6.3+0.84+3.7+8.16
18.75-0.43-4.57
0.25*0.03*4
13.7*0.25*8
2.65*1.7+1.35*1.7
32.8+5.6+7.2
\uff082.5+0.25\uff09*0.4
8*\uff082.5*0.25\uff09
8.4*0.2+1.6*0.2
1.25*0.8*0.5
\uff081.5+0.25\uff09*0.4
1.2*0.4+1.3*0.4





\u65b9\u7a0b
9+6x=14
x+9x=4+7
2x+9=17
8-4x=6
6x-7=12
7x-9=8
x-56=1
8-7x=1
x-30=12
6x-21=21
6x-3=6
9x=18
4x-18=13
5x+9=11
6-2x=11
x+4+8=23
7x-12=8
X-5.7=2.15
15 5X-2X=18
3X 0.7=5
x\uff0b13\uff1d33
3 \uff0d 5x\uff1d80
1.8 +6x\uff1d54
6.7x \uff0d60.3\uff1d6.7
9 \uff0b4x \uff1d40
2x+8=16
3.5\u00d72= 4.2 x
26\u00d71.5= 2x
0.5\u00d716\u201516\u00d70.2=4x
9.25\uff0dX=0.403
16.9\u00f7X=0.3
X\u00f70.5=2.6
3\uff0d5x\uff1d80
1.8-6x\uff1d54
6.7x\uff0d60.3\uff1d6.7
9 \uff0b4x\uff1d40
0.2x\uff0d0.4\uff0b0.5\uff1d3.7
9.4x\uff0d0.4x\uff1d16.2
12\uff0d4x\uff1d20
1/3x\uff0b5/6x\uff1d1.4
12x\uff0b34x=1
18x\uff0d14x=12
23 x\uff0d5\u00d714=14
12\uff0b34x=56
22\uff0d14x=12
23x-14x=14
x\uff0b14x=65
23x=14x\uff0b14
30x12x\uff0d14x=1
x-0.7x=3.6

(1)2.9 × 0.5 ＝ 答案:1.45 (2)5.9 × 0.2 ＝ 答案:1.18 (3)3.6 × 7 ＝ 答案:25.2 (4)4.3 × 0.3 ＝ 答案:1.29 (5)5.9 × 9 ＝ 答案:53.1 (6)9.4 × 9 ＝ 答案:84.6 (7)7.5 × 6 ＝ 答案:45 (8)1.3 × 3 ＝ 答案:3.9 (9)3.8 × 7 ＝ 答案:26.6 (10)4.7 × 5 ＝ 答案:23.5 (11)5.2 × 7 ＝ 答案:36.4 (12)2.3 × 2 ＝ 答案:4.6 (13)6.8 × 7 ＝ 答案:47.6 (14)6.7 × 0.3 ＝ 答案:2.01 (15)7.5 × 7 ＝ 答案:52.5 (16)7.1 × 0.7 ＝ 答案:4.97 (17)6.6 × 2 ＝ 答案:13.2 (18)3.5 × 0.2 ＝ 答案:0.7 (19)3.7 × 0.3 ＝ 答案:1.11 (20)4 × 0.3 ＝ 答案:1.2 (21)9.2 × 9 ＝ 答案:82.8 (22)6.1 × 9 ＝ 答案:54.9 (23)6.8 × 5 ＝ 答案:34 (24)4.8 × 4 ＝ 答案:19.2 (25)4.1 × 2 ＝ 答案:8.2 (26)6.4 × 0.4 ＝ 答案:2.56 (27)9.6 × 7 ＝ 答案:67.2 (28)1.9 × 0.8 ＝ 答案:1.52 (29)4.2 × 0.3 ＝ 答案:1.26 (30)1.9 × 0.8 ＝ 答案:1.52 (31)8.7 × 0.4 ＝ 答案:3.48 (32)2.6 × 7 ＝ 答案:18.2 (33)2.1 × 3 ＝ 答案:6.3 (34)1.6 × 2 ＝ 答案:3.2 (35)5.3 × 3 ＝ 答案:15.9 (36)8.5 × 9 ＝ 答案:76.5 (37)6.9 × 0.7 ＝ 答案:4.83 (38)6.6 × 0.4 ＝ 答案:2.64 (39)4.3 × 8 ＝ 答案:34.4 (40)8.2 × 3 ＝ 答案:24.6 (41)8.4 × 6 ＝ 答案:50.4 (42)2 × 6 ＝ 答案:12 (43)8.7 × 0.3 ＝ 答案:2.61 (44)3.2 × 0.5 ＝ 答案:1.6 (45)8.5 × 0.9 ＝ 答案:7.65 (46)7.1 × 0.7 ＝ 答案:4.97 (47)7.1 × 6 ＝ 答案:42.6 (48)7.4 × 0.5 ＝ 答案:3.7 (49)9.6 × 3 ＝ 答案:28.8 (50)8.4 × 8 ＝ 答案:67.2 (51)2.5 × 4 ＝ 答案:10 (52)1.3 × 3 ＝ 答案:3.9 (53)8 × 0.4 ＝ 答案:3.2 (54)7.8 × 9 ＝ 答案:70.2 (55)6 × 0.5 ＝ 答案:3 (56)7.7 × 8 ＝ 答案:61.6 (57)9.9 × 0.7 ＝ 答案:6.93 (58)5.4 × 2 ＝ 答案:10.8 (59)5.1 × 2 ＝ 答案:10.2 (60)4.7 × 3 ＝ 答案:14.1 (61)1.2 × 0.2 ＝ 答案:0.24 (62)5.3 × 0.2 ＝ 答案:1.06 (63)2.7 × 8 ＝ 答案:21.6 (64)2 × 9 ＝ 答案:18 (65)9.6 × 9 ＝ 答案:86.4 (66)5.4 × 3 ＝ 答案:16.2 (67)9.3 × 3 ＝ 答案:27.9 (68)5.5 × 0.8 ＝ 答案:4.4 (69)7.4 × 0.7 ＝ 答案:5.18 (70)3.4 × 0.6 ＝ 答案:2.04 (71)4.5 × 0.4 ＝ 答案:1.8 (72)3.8 × 7 ＝ 答案:26.6 (73)4.7 × 0.2 ＝ 答案:0.94 (74)1.5 × 6 ＝ 答案:9 (75)8 × 0.9 ＝ 答案:7.2 (76)9.2 × 0.6 ＝ 答案:5.52 (77)2.4 × 9 ＝ 答案:21.6 (78)1.8 × 5 ＝ 答案:9 (79)8.9 × 0.6 ＝ 答案:5.34 (80)3.2 × 0.8 ＝ 答案:2.56 (81)9.7 × 9 ＝ 答案:87.3 (82)6 × 7 ＝ 答案:42 (83)1.6 × 0.7 ＝ 答案:1.12 (84)6.3 × 2 ＝ 答案:12.6 (85)7.1 × 0.8 ＝ 答案:5.68 (86)5.2 × 7 ＝ 答案:36.4 (87)3.9 × 0.8 ＝ 答案:3.12 (88)9.9 × 0.2 ＝ 答案:1.98 (89)2.4 × 0.4 ＝ 答案:0.96 (90)3.5 × 5 ＝ 答案:17.5 (91)7.7 × 3 ＝ 答案:23.1 (92)9.5 × 0.2 ＝ 答案:1.9 (93)7.8 × 0.3 ＝ 答案:2.34 (94)3.4 × 8 ＝ 答案:27.2 (95)1.3 × 0.6 ＝ 答案:0.78 (96)9 × 0.5 ＝ 答案:4.5 (97)3.5 × 0.5 ＝ 答案:1.75 (98)3.4 × 9 ＝ 答案:30.6 (99)3.4 × 0.9 ＝ 答案:3.06 (100)6.5 × 0.5 ＝ 答案:3.25 1)7.4 × 6 ＝ 答案:44.4 (2)2.3 × 5 ＝ 答案:11.5 (3)5.1 × 0.4 ＝ 答案:2.04 (4)9.6 × 4 ＝ 答案:38.4 (5)5.4 × 5 ＝ 答案:27 (6)1.5 × 0.8 ＝ 答案:1.2 (7)9.4 × 2 ＝ 答案:18.8 (8)1.6 × 0.8 ＝ 答案:1.28 (9)7.5 × 0.7 ＝ 答案:5.25 (10)3.7 × 9 ＝ 答案:33.3 (11)1.8 × 0.6 ＝ 答案:1.08 (12)3.5 × 7 ＝ 答案:24.5 (13)9.3 × 4 ＝ 答案:37.2 (14)2.7 × 0.7 ＝ 答案:1.89 (15)5.2 × 7 ＝ 答案:36.4 (16)3.8 × 0.2 ＝ 答案:0.76 (17)1.2 × 0.9 ＝ 答案:1.08 (18)6.1 × 7 ＝ 答案:42.7 (19)3.8 × 0.7 ＝ 答案:2.66 (20)1.6 × 5 ＝ 答案:8 (21)5.9 × 0.3 ＝ 答案:1.77 (22)9 × 9 ＝ 答案:81 (23)7.1 × 0.3 ＝ 答案:2.13 (24)9.7 × 2 ＝ 答案:19.4 (25)5.8 × 0.8 ＝ 答案:4.64 (26)1.7 × 6 ＝ 答案:10.2 (27)9.6 × 0.5 ＝ 答案:4.8 (28)1.8 × 4 ＝ 答案:7.2 (29)4.3 × 0.6 ＝ 答案:2.58 (30)1.3 × 9 ＝ 答案:11.7 (31)2.9 × 8 ＝ 答案:23.2 (32)5.6 × 7 ＝ 答案:39.2 (33)5.3 × 0.6 ＝ 答案:3.18 (34)5.4 × 0.7 ＝ 答案:3.78 (35)5.3 × 0.2 ＝ 答案:1.06 (36)8.3 × 2 ＝ 答案:16.6 (37)9.5 × 3 ＝ 答案:28.5 (38)7.3 × 2 ＝ 答案:14.6 (39)2 × 0.5 ＝ 答案:1 (40)5.2 × 0.6 ＝ 答案:3.12 (41)9.7 × 7 ＝ 答案:67.9 (42)6.1 × 8 ＝ 答案:48.8 (43)6.7 × 0.2 ＝ 答案:1.34 (44)8.6 × 6 ＝ 答案:51.6 (45)3.1 × 0.5 ＝ 答案:1.55 (46)8.2 × 6 ＝ 答案:49.2 (47)1.5 × 6 ＝ 答案:9 (48)8.4 × 2 ＝ 答案:16.8 (49)1.3 × 6 ＝ 答案:7.8 (50)8.9 × 0.5 ＝ 答案:4.45 (51)6.7 × 2 ＝ 答案:13.4 (52)5.4 × 6 ＝ 答案:32.4 (53)6.3 × 9 ＝ 答案:56.7 (54)6.4 × 3 ＝ 答案:19.2 (55)8.5 × 0.2 ＝ 答案:1.7 (56)1.5 × 0.5 ＝ 答案:0.75 (57)3 × 0.4 ＝ 答案:1.2 (58)6.8 × 5 ＝ 答案:34 (59)8.7 × 0.3 ＝ 答案:2.61 (60)5.6 × 6 ＝ 答案:33.6 (61)5.5 × 0.7 ＝ 答案:3.85 (62)9.6 × 0.3 ＝ 答案:2.88 (63)9.6 × 7 ＝ 答案:67.2 (64)8.3 × 3 ＝ 答案:24.9 (65)9.5 × 0.5 ＝ 答案:4.75 (66)5.5 × 9 ＝ 答案:49.5 (67)1.9 × 9 ＝ 答案:17.1 (68)2.2 × 7 ＝ 答案:15.4 (69)3.8 × 0.9 ＝ 答案:3.42 (70)1.8 × 0.7 ＝ 答案:1.26 (71)4.6 × 0.2 ＝ 答案:0.92 (72)1.3 × 0.2 ＝ 答案:0.26 (73)4.3 × 0.9 ＝ 答案:3.87 (74)1.4 × 2 ＝ 答案:2.8 (75)7 × 5 ＝ 答案:35 (76)2.5 × 7 ＝ 答案:17.5 (77)6.4 × 0.4 ＝ 答案:2.56 (78)6.3 × 5 ＝ 答案:31.5 (79)3.1 × 4 ＝ 答案:12.4 (80)5.8 × 0.7 ＝ 答案:4.06 (81)1.2 × 8 ＝ 答案:9.6 (82)6.5 × 0.5 ＝ 答案:3.25 (83)3.9 × 0.9 ＝ 答案:3.51 (84)9.3 × 3 ＝ 答案:27.9 (85)2 × 2 ＝ 答案:4 (86)3.7 × 5 ＝ 答案:18.5 (87)1.1 × 3 ＝ 答案:3.3 (88)6.5 × 5 ＝ 答案:32.5 (89)2.7 × 0.8 ＝ 答案:2.16 (90)8.4 × 8 ＝ 答案:67.2 (91)4.2 × 0.8 ＝ 答案:3.36 (92)6.9 × 2 ＝ 答案:13.8 (93)6.6 × 2 ＝ 答案:13.2 (94)9.5 × 0.8 ＝ 答案:7.6 (95)6.6 × 0.7 ＝ 答案:4.62 (96)1.7 × 0.5 ＝ 答案:0.85 (97)6.9 × 9 ＝ 答案:62.1 (98)8.4 × 6 ＝ 答案:50.4 (99)9.4 × 0.5 ＝ 答案:4.7 (100)8.4 × 0.5 ＝ 答案:4.2 (1)5.6 × 8 ＝ 答案:44.8 (2)3.9 × 5 ＝ 答案:19.5 (3)5.4 × 0.4 ＝ 答案:2.16 (4)7.3 × 0.2 ＝ 答案:1.46 (5)9.4 × 8 ＝ 答案:75.2 (6)3.8 × 0.3 ＝ 答案:1.14 (7)8.6 × 0.4 ＝ 答案:3.44 (8)7.3 × 4 ＝ 答案:29.2 (9)4.8 × 0.4 ＝ 答案:1.92 (10)1.3 × 4 ＝ 答案:5.2 (11)7.3 × 8 ＝ 答案:58.4 (12)8 × 4 ＝ 答案:32 (13)3.2 × 6 ＝ 答案:19.2 (14)4.7 × 0.3 ＝ 答案:1.41 (15)4.6 × 0.9 ＝ 答案:4.14 (16)9.9 × 4 ＝ 答案:39.6 (17)8.2 × 0.5 ＝ 答案:4.1 (18)8.2 × 0.5 ＝ 答案:4.1 (19)5 × 0.8 ＝ 答案:4 (20)5.7 × 9 ＝ 答案:51.3 (21)3.9 × 5 ＝ 答案:19.5 (22)7.3 × 2 ＝ 答案:14.6 (23)5.3 × 3 ＝ 答案:15.9 (24)6.7 × 0.2 ＝ 答案:1.34 (25)4.3 × 0.5 ＝ 答案:2.15 (26)4.7 × 0.4 ＝ 答案:1.88 (27)2.4 × 5 ＝ 答案:12 (28)7.3 × 0.3 ＝ 答案:2.19 (29)3.8 × 0.9 ＝ 答案:3.42 (30)7.3 × 4 ＝ 答案:29.2 (31)5.1 × 0.7 ＝ 答案:3.57 (32)9.8 × 2 ＝ 答案:19.6 (33)8.3 × 0.7 ＝ 答案:5.81 (34)4.3 × 0.6 ＝ 答案:2.58 (35)9.5 × 0.3 ＝ 答案:2.85 (36)9.9 × 5 ＝ 答案:49.5 (37)3.4 × 2 ＝ 答案:6.8 (38)2.9 × 4 ＝ 答案:11.6 (39)1.1 × 6 ＝ 答案:6.6 (40)2.1 × 5 ＝ 答案:10.5 (41)9.1 × 0.8 ＝ 答案:7.28 (42)9.7 × 0.3 ＝ 答案:2.91 (43)9.6 × 0.5 ＝ 答案:4.8 (44)5.1 × 0.6 ＝ 答案:3.06 (45)5.5 × 8 ＝ 答案:44 (46)9 × 8 ＝ 答案:72 (47)5 × 4 ＝ 答案:20 (48)4.1 × 5 ＝ 答案:20.5 (49)1.4 × 0.3 ＝ 答案:0.42 (50)2.4 × 9 ＝ 答案:21.6 (51)5.1 × 7 ＝ 答案:35.7 (52)7.9 × 5 ＝ 答案:39.5 (53)4.1 × 9 ＝ 答案:36.9 (54)1.6 × 2 ＝ 答案:3.2 (55)6.7 × 0.8 ＝ 答案:5.36 (56)8.9 × 0.7 ＝ 答案:6.23 (57)6.2 × 0.2 ＝ 答案:1.24 (58)2.6 × 7 ＝ 答案:18.2 (59)6.8 × 0.6 ＝ 答案:4.08 (60)5.6 × 9 ＝ 答案:50.4 (61)9.8 × 0.8 ＝ 答案:7.84 (62)9 × 9 ＝ 答案:81 (63)3.8 × 7 ＝ 答案:26.6 (64)2.5 × 6 ＝ 答案:15 (65)1.7 × 5 ＝ 答案:8.5 (66)4.6 × 0.7 ＝ 答案:3.22 (67)8.9 × 3 ＝ 答案:26.7 (68)7.9 × 0.6 ＝ 答案:4.74 (69)6.3 × 4 ＝ 答案:25.2 (70)2.9 × 0.3 ＝ 答案:0.87 (71)4.6 × 8 ＝ 答案:36.8 (72)1.5 × 2 ＝ 答案:3 (73)6.9 × 0.7 ＝ 答案:4.83 (74)5.8 × 6 ＝ 答案:34.8 (75)3.4 × 0.5 ＝ 答案:1.7 (76)1.9 × 2 ＝ 答案:3.8 (77)8.3 × 0.4 ＝ 答案:3.32 (78)7.4 × 6 ＝ 答案:44.4 (79)4.5 × 3 ＝ 答案:13.5 (80)5.9 × 4 ＝ 答案:23.6 (81)8.9 × 0.2 ＝ 答案:1.78 (82)4.9 × 8 ＝ 答案:39.2 (83)7.5 × 2 ＝ 答案:15 (84)1.5 × 7 ＝ 答案:10.5 (85)8.3 × 0.4 ＝ 答案:3.32 (86)6.1 × 0.6 ＝ 答案:3.66 (87)3.7 × 0.5 ＝ 答案:1.85 (88)7.4 × 0.5 ＝ 答案:3.7 (89)1.3 × 0.7 ＝ 答案:0.91 (90)3.5 × 0.7 ＝ 答案:2.45 (91)9.9 × 0.2 ＝ 答案:1.98 (92)2 × 7 ＝ 答案:14 (93)4.4 × 0.8 ＝ 答案:3.52 (94)8.5 × 4 ＝ 答案:34 (95)9.8 × 8 ＝ 答案:78.4 (96)9 × 9 ＝ 答案:81 (97)2.7 × 8 ＝ 答案:21.6 (98)1.6 × 0.3 ＝ 答案:0.48 (99)5.7 × 3 ＝ 答案:17.1 (100)7.5 × 5 ＝ 答案:37.5 1)4.1 × 0.7 ＝ 答案:2.87 (2)3.9 × 5 ＝ 答案:19.5 (3)8.5 × 2 ＝ 答案:17 (4)7.7 × 6 ＝ 答案:46.2 (5)4 × 9 ＝ 答案:36 (6)1.7 × 2 ＝ 答案:3.4 (7)7.9 × 6 ＝ 答案:47.4 (8)4.2 × 0.9 ＝ 答案:3.78 (9)2.6 × 6 ＝ 答案:15.6 (10)9.9 × 8 ＝ 答案:79.2 (11)1.7 × 5 ＝ 答案:8.5 (12)2.4 × 4 ＝ 答案:9.6 (13)6 × 0.4 ＝ 答案:2.4 (14)3.9 × 6 ＝ 答案:23.4 (15)7 × 0.4 ＝ 答案:2.8 (16)7.6 × 0.4 ＝ 答案:3.04 (17)3.9 × 0.7 ＝ 答案:2.73 (18)2.8 × 0.3 ＝ 答案:0.84 (19)3 × 9 ＝ 答案:27 (20)8.1 × 0.3 ＝ 答案:2.43 (21)3.3 × 8 ＝ 答案:26.4 (22)8.1 × 0.7 ＝ 答案:5.67 (23)2.2 × 3 ＝ 答案:6.6 (24)3 × 6 ＝ 答案:18 (25)3.2 × 5 ＝ 答案:16 (26)4.3 × 7 ＝ 答案:30.1 (27)6.7 × 5 ＝ 答案:33.5 (28)2.7 × 0.7 ＝ 答案:1.89 (29)1.4 × 0.9 ＝ 答案:1.26 (30)1.6 × 9 ＝ 答案:14.4 (31)8 × 0.8 ＝ 答案:6.4 (32)5.9 × 2 ＝ 答案:11.8 (33)3.6 × 9 ＝ 答案:32.4 (34)1.4 × 0.6 ＝ 答案:0.84 (35)8.3 × 0.2 ＝ 答案:1.66 (36)7 × 9 ＝ 答案:63 (37)8.7 × 8 ＝ 答案:69.6 (38)2.9 × 3 ＝ 答案:8.7 (39)6.7 × 0.2 ＝ 答案:1.34 (40)1.6 × 0.8 ＝ 答案:1.28 (41)9.6 × 2 ＝ 答案:19.2 (42)5.4 × 5 ＝ 答案:27 (43)5.8 × 0.7 ＝ 答案:4.06 (44)3.7 × 0.2 ＝ 答案:0.74 (45)8.7 × 0.6 ＝ 答案:5.22 (46)2.1 × 0.4 ＝ 答案:0.84 (47)1.6 × 5 ＝ 答案:8 (48)4.6 × 3 ＝ 答案:13.8 (49)9.5 × 0.6 ＝ 答案:5.7 (50)5.6 × 9 ＝ 答案:50.4 (51)5.9 × 0.3 ＝ 答案:1.77 (52)9 × 2 ＝ 答案:18 (53)9 × 4 ＝ 答案:36 (54)4.5 × 3 ＝ 答案:13.5 (55)4.4 × 6 ＝ 答案:26.4 (56)5.5 × 4 ＝ 答案:22 (57)8.6 × 6 ＝ 答案:51.6 (58)6.6 × 0.2 ＝ 答案:1.32 (59)8.7 × 0.6 ＝ 答案:5.22 (60)2.4 × 0.6 ＝ 答案:1.44 (61)2.1 × 0.2 ＝ 答案:0.42 (62)4.4 × 0.8 ＝ 答案:3.52 (63)7.1 × 9 ＝ 答案:63.9 (64)3.8 × 3 ＝ 答案:11.4 (65)8.9 × 7 ＝ 答案:62.3 (66)7.1 × 0.2 ＝ 答案:1.42 (67)3.9 × 0.5 ＝ 答案:1.95 (68)1.6 × 0.7 ＝ 答案:1.12 (69)3.9 × 0.9 ＝ 答案:3.51 (70)7.7 × 2 ＝ 答案:15.4 (71)7 × 0.7 ＝ 答案:4.9 (72)8.3 × 4 ＝ 答案:33.2 (73)5.1 × 0.2 ＝ 答案:1.02 (74)9.2 × 0.8 ＝ 答案:7.36 (75)1.3 × 6 ＝ 答案:7.8 (76)6.8 × 7 ＝ 答案:47.6 (77)2.2 × 3 ＝ 答案:6.6 (78)3.2 × 8 ＝ 答案:25.6 (79)6.8 × 0.2 ＝ 答案:1.36 (80)4.7 × 0.2 ＝ 答案:0.94 (81)6.7 × 9 ＝ 答案:60.3 (82)9.9 × 7 ＝ 答案:69.3 (83)3.3 × 0.2 ＝ 答案:0.66 (84)2.3 × 3 ＝ 答案:6.9 (85)8.3 × 0.5 ＝ 答案:4.15 (86)8.5 × 0.2 ＝ 答案:1.7 (87)1.7 × 0.7 ＝ 答案:1.19 (88)9 × 0.6 ＝ 答案:5.4 (89)9.9 × 5 ＝ 答案:49.5 (90)7.4 × 0.3 ＝ 答案:2.22 (91)7.7 × 2 ＝ 答案:15.4 (92)9.9 × 0.4 ＝ 答案:3.96 (93)5 × 0.2 ＝ 答案:1 (94)8.5 × 5 ＝ 答案:42.5 (95)9.1 × 9 ＝ 答案:81.9 (96)5.6 × 0.5 ＝ 答案:2.8 (97)5 × 8 ＝ 答案:40 (98)3.1 × 0.4 ＝ 答案:1.24 (99)6.8 × 8 ＝ 答案:54.4 (100)1.9 × 0.2 ＝ 答案:0.38

如下图：

口算：一边心算一边口说地运算。口算就是用脑计算，用口头叙述来记忆当时的结果。这种方法用于速算，常练有助于智力的提高。也成为如今的主流的计算方法。也叫“心算”。

数学教学方法之一，一种只凭思维及语言活动不借任何工具的计算方法。它能培养学生快速的计算，发展学生的注意、记忆和思维能力。口算熟练后有助于笔算，且便于在日常生活中应用。

17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝

小学四年级数学口算题：

1、45+15×6= 135

2、250÷5×8=400

3、6×5÷2×4=60

4、30×3+8=98

5、400÷4+20×5= 200

6、10+12÷3+20=34

7、（80÷20+80)÷4=21

8、70+(100-10×5)=120

9、360÷40= 9

10、40×20= 800

11、80-25= 55

12、70+45=115

13、90×2= 180

14、16×6= 96

15、300×6= 1800

16、540÷9=60

17、30×20= 600

18、400÷4= 100

19、350-80= 270

20、160+70=230

21、18-64÷8= 10

22、42÷6+20=27

23、40-5×7= 5

24、80+60÷3=100

25、41+18÷2= 50

26、75-11×5= 20

27、42+7-29= 20

28、5600÷80=70

29、25×16= 400

30、120×25= 3000

31、36×11= 396

32、1025÷25=41

33、336+70= 406

34、25×9×4= 900

35、200-33×3= 101

36、3020-1010=2010

37、12×50= 600

38、25×8= 200

39、23×11= 253

40、125÷25=5

41、4200-2200=2000

42、220+80= 300

43、20×8×5= 800

44、600-3×200=0

45、20+20÷2= 30

46、35-25÷5= 30

47、36+8-40= 4

48、2800÷40=70

49、98÷14 = 7

50、96÷24 = 4

51、56÷14 =4

52、65÷13 = 5

53、75÷15 = 5

54、120÷24 =5

55、200÷25 = 8

56、800÷16 = 50

57、840÷21 =40

58、560÷14 = 40

59、390÷13 = 30

60、600÷15 =40

61、72÷24 = 3

62、85÷17 = 5

63、90÷15 =6

64、96÷16 = 6

65、78÷26 = 4

66、51÷17 =3

67、80÷40 = 2

68、100÷20 = 5

69、100÷4 =25

70、240÷40 = 6

71、920÷4 = 230

72、300÷60=5

73、64÷2 = 32

74、64÷4 = 16

75、50÷5 =10

76、60÷8 = 7、5

77、96÷4 = 24

78、90÷6 =15

79、400+80 = 480

80、400-80 = 320

81、40×80 =3200

82、400÷80 = 5

83、48÷16 = 3

84、96÷24 =4

85、160×5= 800

86、4×250= 1000

87、0×518= 0

88、10×76= 760

89、36×10=360

90、15×6= 90

91、24×3= 72

92、5×18= 90

93、26×4= 74

94、7×15=105

95、32×30= 960

96、40×15= 600

97、60×12= 720

98、23×30= 690

99、30×50=1500

100、0.5×700=350

1) 103÷73-159-57=
(2) 83×91÷131+38=
(3) 197-46+67-13=
(4) 38÷54×126-52=
(5) 192+52×136÷66=
(6) 123-47+159-16=
(7) 164×23-126+74=
(8) 117+21+17-19=
(9) 7÷9×161+93=
(10) 93×35-128+36=
(11) 86×9×187×99=
(12) 68÷83-14÷54=
(13) 80÷93+15-17=
(14) 51+20÷143-90=
(15) 42+31×180+42=
(16) 96÷82-173×25=
(17) 42÷12×180-66=
(18) 152-18÷10×19=
(19) 16-69÷137×5=
(20) 109÷9-51÷45=
(21) 23+15+37÷18=
(22) 52+95÷37÷12=
(23) 88×51+188÷40=
(24) 112×3-103×82=
(25) 56-7-66-1=
(26) 109×66-29×10=
(27) 39+55-166-52=
(28) 11÷55÷86÷51=
(29) 71-42+50×92=
(30) 177÷97-92÷4=
(31) 151×9÷1+93=
(32) 13×7÷56×18=
(33) 99-21+70-22=
(34) 14×5÷33-34=
(35) 4÷90-125+67=
(36) 24-48-170÷97=
(37) 73÷98-106+66=
(38) 76+53÷158+91=
(39) 81-28÷69+27=
(40) 50+20×83÷56=
(41) 23÷78-40×54=
(42) 118-58+73-17=
(43) 161÷98÷64+75=
(44) 198×12÷152-9=
(45) 80×12÷54-64=
(46) 198-85×85-1=
(47) 128+33÷42+66=
(48) 73×66+33-21=
(49) 75×3÷28+24=
(50) 71-51+199-83=

1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -（ 3/2 + 4/5 ）
8. 7/8 + （ 1/8 + 1/9 ）
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×（ 1/2 + 2/3 ）
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - （ 2/7 – 10/21 ）
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 ×× 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21 回答者： 盗号全家4光 | 十级 | 2011-7-11 10:19
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝

灏忓鏁板浜斿勾绾鍙ｇ畻璇曢400閬
绛旓細1) 125脳0.8= 2) 0.125脳8= 3)0.56梅8= 4)0.3脳7= 5) 8.36+0.75= 6) 3.2脳0.2= 7)5.6梅0.4= 8)1.2+43= 9) 0.45+0.55= 10) 5.2+1.7= 11)0.45脳0.2= 12)9.2-0.8= 13) 0.6脳0.5= 14) 3.45梅10= 15)1.68+3.34= 16)1.25脳8= 17) ...

浜斿勾绾ф暟瀛︿笅鍐绠渚胯繍绠楅?
绛旓細浜斿勾绾т笅鍐屾暟瀛绠渚胯绠楅100閬撹鏈夌瓟妗, 鍦ㄥ摢閲屾壘浜斿勾绾т笅鍐屾暟瀛︾畝渚胯绠楅鐨勭瓟妗堛 涓銆佸彛绠椾笅闈㈠悇棰 10-2.65= 0.9脳0.08= 528-349= 6+14.4= 24梅0.04= 12.34-2.3= 0梅3.8= 0.77+0.33= 7梅1.4= 67.5+0.25=7.2梅8脳4= 5-1.4-1.6= 00梅125梅8= 1.9脳4脳0.5= 80脳0.125= 3脳 = 6 6= 2 -...

璋佹湁浜斿勾绾т笅瀛︽湡鐨勬暟瀛棰?Help me!
绛旓細璋佹湁浜斿勾绾涓嬪鏈熺殑鏁板棰?Help me! 璋佹湁浜斿勾绾т笅鍐屾暟瀛棰?瑕佸彛绠400閬,绗旂畻200閬,鑴卞紡璁＄畻200閬,搴旂敤棰100閬(鏈濂藉甫绛旀)銆傜瓟妗堝ソ鐨勮瘽鍔100鐐硅储瀵屽笺傚揩鐐,鍔″繀8鏈30鏃ュ墠鎼炲畾!涓瀹氳甯︾瓟妗堝憖!鏃堕棿涓嶅鍟!... 璋佹湁浜斿勾绾т笅鍐屾暟瀛﹂?瑕佸彛绠400閬,绗旂畻200閬,鑴卞紡璁＄畻200閬,搴旂敤棰100閬(鏈濂藉甫绛旀)銆

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绛旓細浜斿勾绾т笅鍐屼汉鏁欑増鍙ｇ畻缁冧範鍐7.8.9椤电瓟妗 8:12.84.96.78.106.7878.3334 鍋跺伓濂囧鍋跺鍋跺伓濂囧鍋禣K,杩樻湁涓棰樻垜涔熶笉浼! 浜烘暀鐗浜斿勾绾т笅鍐屾暟瀛鍙ｇ畻棰樺崱绛旀 3.4-1.4= 7.82-7.2= 2.19+9.1= 0.68+0.42=8.1-5.1= 0.728-0.24= 0.8+0.18= 1-0.98=0.048+0.52= 5脳400= 19.9+11.1= 187梅1000= 0.081脳10=75梅10...

浜斿勾绾ф暟瀛鍒嗘暟鍙ｇ畻棰樿鍒嗘暟30閬撻浮楦￠浮楦￠浮楦￠浮楦###
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绛旓細浜斿勾绾т笅鍐屾暟瀛鍙ｇ畻瑕佺瓟妗70閬 40 4涓洖绛 #鐑# 鍏堜汉涓姝,鎺㈢鍗庝负P50瀹濈洅 鍐拌悓鑺掓灉 2012-07-03 鐭ラ亾绛斾富 鍥炵瓟閲:31 閲囩撼鐜:0% 甯姪鐨勪汉:17.1涓 鎴戜篃鍘荤瓟棰樿闂釜浜洪〉 鍏虫敞 灞曞紑鍏ㄩ儴 17脳40=680, 100-63=37, 3.2+1.68=4.88, 2.8脳0.4= 1.12 14-7.4=6.6, 1.92梅0.04=48, 0.32...

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绛旓細2.5脳1.4= 2.4脳4.9= 2.8脳3.3= 3.5脳4.8= 2.6脳1.3= 4.5脳3.2= 1.2脳1.3= 0.7脳2.0= 2.0脳3.7= 0.7脳0.5= 4.3脳4.6= 4.6脳3.1= 1.0脳2.3= 3.6脳3.7= 1.5脳4.6= 2.3脳2.2= 2.9脳1.2= 3.8脳3.4= 1.4脳1.3...

浜斿勾绾т笅鍐屾暟瀛缁冧範棰
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