5年级数学口算题300道和答案 五年级上册数学口算题400道带答案 急！！

\u56db\u5e74\u7ea7\u53e3\u7b97\u9898300\u9053

1\u3001240+480\u00f730\u00d72
=240+16\u00d72
=240+32
=272
2\u3001225-10\u00d7(6+13)
=225-10\u00d719
=225-190
=35
3\u3001(120\u00d72+120)\u00f79
=\uff08240+120\uff09\u00f79
=360\u00f79
=40
4\u3001164-13\u00d75+85
=164-65+85
=99+85
=184
5\u3001330\u00f7(65-50)
=330\u00f715
=22
6\u3001128-6\u00d78\u00f716
=128-48\u00f716
=128-3
=125
\u6269\u5c55\u8d44\u6599
\u901f\u7b97\u7684\u53e3\u8bc0\uff1a

\u4efb\u610f\u4e24\u4f4d\u6570\u4e58\u4ee5\u4efb\u610f\u4e24\u4f4d\u6570\uff0c\u53ea\u8981\u9b4f\u5f0f\u7cfb\u6570\u4e3a\u201c0\u201d\u6240\u5f97\u7684\u79ef\uff0c\u4e00\u5b9a\u662f\u4e24\u9879\u6570\u4e2d\u7684\u5c3e\u4e58\u5c3e\u6240\u5f97\u7684\u79ef\u4e3a\u540e\u79ef\uff0c\u5934\u4e58\u5934\uff08\u5176\u4e2d\u4e00\u9879\u5934\u52a01\u7684\u548c\uff09\u7684\u79ef\u4e3a\u524d\u79ef\uff0c\u4e24\u79ef\u76f8\u90bb\u6240\u5f97\u7684\u79ef\u3002
ab\u00d7cd \u9b4f\u5f0f\u7cfb\u6570=\uff08a-c)\u00d7d+(b+d-10)\u00d7c ­\u201c\u5934\u4e58\u5934\uff0c\u5c3e\u4e58\u5c3e\uff0c\u5408\u96f6\u4e3a\u6574\uff0c\u8865\u4f59\u6570\u3002\u201d­
1\u3001\u5148\u6c42\u51fa\u9b4f\u5f0f\u7cfb\u6570
2\u3001\u5934\u4e58\u5934\uff08\u5176\u4e2d\u4e00\u9879\u52a0\u4e00\uff09\u4e3a\u524d\u79ef \uff08\u9002\u5e94\u5c3e\u76f8\u52a0\u4e3a10\u7684\u6570\uff09­
3\u3001\u5c3e\u4e58\u5c3e\u4e3a\u540e\u79ef\u3002­
4\u3001\u4e24\u79ef\u76f8\u8fde\uff0c\u5728\u5341\u4f4d\u6570\u4e0a\u52a0\u4e0a\u9b4f\u5f0f\u7cfb\u6570\u5373\u53ef \u3002 ­

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

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。

2.8×0.4＝ 1.12
14－7.4＝6.6,
1.92÷0.04＝48,
0.32×500＝160,
0.65＋4.35＝ 5
10－5.4＝4.6,
4÷20＝0.2,
3.5×200＝700,
1.5－0.06＝1.44
0.75÷15＝0.05,
0.4×0.8＝0.32,
4×0.25＝1,
0.36＋1.54＝2
1.01×99＝99.99,
420÷35＝12,
25×12＝300,
135÷0.5＝270
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÷17＝0.03,
32.8＋19＝51.8,
5.2÷1.3＝4,
1.6×0.4＝ 0.64
4.9×0.7＝3.43,
1÷5＝0.2,
6÷12＝0.5,
0.87－0.49＝0.38

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
13.1/2×3/5
14.3.375+5.75+2.25+6.625
15.1001－9036÷18
16.3.8×5.25+14.5
17.2.1*4.3+5.7*2.1
18.30×1/3
19.102*45-328
20.2/3×12
21.2.8*3.1+17.6/8
22.3/5×5/6
23.(50-12.5)/2.5
24.2/5×1/3
25.6110*47+639
26.1/2-1/6
27.3.5*2.7-52.2/18
28.1/7×1/5
29.3.375*0.97+0.97*6.625
30.25×4/5
31.6.54+2.4+3.46+0.6
32.5/6-1/2
33.95.6*1.8+95.6*8.2
34.1/2×1/5
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÷13×27
46.1.5×4.2－0.75÷0.25
47.3.27×4 +3.27×5.7
48.（1.2+ 1.8）×4.51025－768÷32
49.0.25×80－0.45÷0.9
50.1025－768÷32
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
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
12÷3/5=12×(5/3）
9÷6/7=9×( 7/6 )
30÷5/6=30×（6/5 ）
4×（3/2 ）=4÷2/3
4÷5/7=4×7/5
3÷4/5=3×5/4
24÷7/16=24×（16/7 ）
A÷C/B=A×B/C
4÷4/5=5
6÷3/4=8
10÷2/5=25
18÷4/9=81/2
4×4/5=16/5
6×3/4=18/4
10×2/5=4
18×4/9=8
3÷3/4=4
2÷1/3=6
6÷4/5=15/2
1÷5/7=7/5
3/4÷3=1/4
1/3÷2=1/6
4/5÷6=2/15
5/7÷1=5/7
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

你是猪，这都晓不得，而且作业300道口算题为啥子要答案？自己算他不香吗？

手续是必须喝醉不足不变阻器是不不起U不走吧成年人信息素不饿粗人不行额U币五福何必泽旭不测虚部必须不出也不不能打有毒吧都不五百顿顿胡

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绛旓細0.5+x)+x=9.8梅2 2(X+X+0.5)=9.8 25000+x=6x 3200=450+5X+X X-0.8X=6 12x-8x=4.8 7.5*2X=15 1.2x=81.6 x+5.6=9.4 52锛峹 锛15 91梅x 锛1.3 X+8.3=10.7 15x 锛3 3x锛8锛16 7(x-2)=2x+3 3x+9=2718(x-2)=270 12x=300-4x 7x+5.3=7.4 3x...

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绛旓細24脳5= 37脳8= 104脳5= 847脳4= 8脳42= 5.78脳92= 78脳2= 245脳0= 306脳103脳0= 132脳6= 350脳1000= 317脳4= 1.52脳6= 125脳0.8= 302脳783脳0= 264脳8= 5.76脳9= 3875脳0= 1.854脳0脳100= 937脳4= 285脳4= 134脳3= 125脳8= 25脳4= 300脳52= 5...

浜斿勾绾涓婂唽鏁板鍙ｇ畻棰鍙绛旀,鏈濂芥湁鍑犵櫨棰樸
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灏忓浜斿勾绾ф暟瀛涓嬪唽鍙ｇ畻棰(澶氬鐩婂杽)甯府蹇欎粖澶╁氨瑕!璋㈣阿
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