小数计算（加减乘除）1250道题 那些动物是数学天才
\u6570\u5b66\u4e2d\u7684\u222a\uff0c\u2229\u662f\u4ec0\u4e48\u610f\u601d\u222a\u4e3a\u5e76\u96c6\uff0c\u2229\u4e3a\u4ea4\u96c6\u3002
1\u3001\u5e76\u96c6
\u7ed9\u5b9a\u4e24\u4e2a\u96c6\u5408A\uff0cB\uff0c\u628a\u4ed6\u4eec\u6240\u6709\u7684\u5143\u7d20\u5408\u5e76\u5728\u4e00\u8d77\u7ec4\u6210\u7684\u96c6\u5408\uff0c\u53eb\u505a\u96c6\u5408A\u4e0e\u96c6\u5408B\u7684\u5e76\u96c6\uff0c\u8bb0\u4f5cA\u222aB\uff0c\u8bfb\u4f5cA\u5e76B\u3002
2\u3001\u4ea4\u96c6
\u96c6\u5408\u8bba\u4e2d\uff0c\u8bbeA\uff0cB\u662f\u4e24\u4e2a\u96c6\u5408\uff0c\u7531\u6240\u6709\u5c5e\u4e8e\u96c6\u5408A\u4e14\u5c5e\u4e8e\u96c6\u5408B\u7684\u5143\u7d20\u6240\u7ec4\u6210\u7684\u96c6\u5408\uff0c\u53eb\u505a\u96c6\u5408A\u4e0e\u96c6\u5408B\u7684\u4ea4\u96c6\uff08intersection\uff09\uff0c\u8bb0\u4f5cA\u2229B\u3002
\uff081\uff09\u96c6\u5408 {1,2,3} \u548c {2,3,4} \u7684\u4ea4\u96c6\u4e3a {2,3}\u3002\u5373{1,2,3}\u2229{2,3,4}={2,3}\u3002
\uff082\uff09\u6570\u5b579\u4e0d\u5c5e\u4e8e\u8d28\u6570\u96c6\u5408 {2,3,5,7,11, ...} \u548c\u5947\u6570\u96c6\u5408 {1,3,5,7,9,11, ...}\u7684\u4ea4\u96c6\u3002\u53739∉{x|x\u662f\u8d28\u6570}\u2229{x|x\u662f\u5947\u6570}\u3002
\u6269\u5c55\u8d44\u6599
\u4e8c\u5143\u5e76\u96c6\uff08\u4e24\u4e2a\u96c6\u5408\u7684\u5e76\u96c6\uff09\u662f\u4e00\u79cd\u7ed3\u5408\u8fd0\u7b97\uff0c\u5373A\u222a(B\u222aC) = (A\u222aB) \u222aC\u3002\u4e8b\u5b9e\u4e0a\uff0cA\u222aB\u222aC\u4e5f\u7b49\u4e8e\u8fd9\u4e24\u4e2a\u96c6\u5408\uff0c\u56e0\u6b64\u5706\u62ec\u53f7\u5728\u4ec5\u8fdb\u884c\u5e76\u96c6\u8fd0\u7b97\u7684\u65f6\u5019\u53ef\u4ee5\u7701\u7565\u3002\u76f8\u4f3c\u7684\uff0c\u5e76\u96c6\u8fd0\u7b97\u6ee1\u8db3\u4ea4\u6362\u5f8b\uff0c\u5373\u96c6\u5408\u7684\u987a\u5e8f\u4efb\u610f\u3002
\u7a7a\u96c6\u662f\u5e76\u96c6\u8fd0\u7b97\u7684\u5355\u4f4d\u5143\u3002 \u5373 ∅ \u222aA=A\u3002\u5bf9\u4efb\u610f\u96c6\u5408A\uff0c\u53ef\u5c06\u7a7a\u96c6\u5f53\u4f5c\u96f6\u4e2a\u96c6\u5408\u7684\u5e76\u96c6\u3002
\u7ed3\u5408\u4ea4\u96c6\u548c\u8865\u96c6\u8fd0\u7b97\uff0c\u5e76\u96c6\u8fd0\u7b97\u4f7f\u4efb\u610f\u5e42\u96c6\u6210\u4e3a\u5e03\u5c14\u4ee3\u6570\u3002 \u4f8b\u5982\uff0c\u5e76\u96c6\u548c\u4ea4\u96c6\u76f8\u4e92\u6ee1\u8db3\u5206\u914d\u5f8b\uff0c\u800c\u4e14\u8fd9\u4e09\u79cd\u8fd0\u7b97\u6ee1\u8db3\u5fb7\u00b7\u6469\u6839\u5f8b\u3002 \u82e5\u5c06\u5e76\u96c6\u8fd0\u7b97\u6362\u6210\u5bf9\u79f0\u5dee\u8fd0\u7b97\uff0c\u53ef\u4ee5\u83b7\u5f97\u76f8\u5e94\u7684\u5e03\u5c14\u73af\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u5e76\u96c6
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u4ea4\u96c6
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
123+25=148 123-35=88 56×7=392 135÷5=27
248+89=337 ... 146-23=123 ... 155×5=775 ... 456-12=38...
456+45=501 ...546-457=89 ... 45×10=451 ... 564-12=47...
879+54=933 ...896-546=350 ...56×12=672.... 45-5=9...
457+456=913...
7+14=21 ... 18-9=9...
8+16=24 ... 25-5=20...
9+18=27... 56-45=11...
10+20=30... 45-23=22...
11+22=33... 78-23=55...
12+24=36...
10-3=7
15-4=11
20-5=15
25-6=19
30-7=23
35-8=27
40-9=31
45-10=35
50-11=39
55-12=43
60-13=47
65-14=51
70-15=55
75-16=59
80-17=63
85-18=67
90-19=71
95-20=75
100-21=79
105-22=83
110-23=87
115-24=91
120-25=95
125-26=99
130-27=103
13+26=39...
14+28=42...
15+30=45...
16+32=48...
17+34=51...
18+36=54...
19+38=57...
20+40=60...
21+42=63...
22+44=66...
23+46=69...
24+48=72...
25+50=75...
26+52=78...
27+54=81...
28+56=84...
29+58=87...
30+60=90...
31+62=93...
32+64=96...
33+66=99...
5 ÷1 =5
10 ÷2 =5
15 ÷3 =5
20 ÷4 =5
25 ÷5 =5
30 ÷6 =5
35 ÷7 =5
40 ÷8 =5
45 ÷9 =5
50 ÷10 =5
55 ÷11 =5
60 ÷12 =5
65 ÷13 =5
70 ÷14 =5
75 ÷15 =5
80 ÷16 5
85 ÷17 5
90 ÷18 5
95 ÷19 5
100 ÷20 5
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
17×40＝680, 100－63＝37, 3.2＋1.68＝4.88, 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
回答者：370116 - 武林盟主 十六级 2-25 14:34
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
123+25=148 123-35=88 56×7=392 135÷5=27
248+89=337 ... 146-23=123 ... 155×5=775 ... 456-12=38...
456+45=501 ...546-457=89 ... 45×10=451 ... 564-12=47...
879+54=933 ...896-546=350 ...56×12=672.... 45-5=9...
457+456=913...
7+14=21 ... 18-9=9...
8+16=24 ... 25-5=20...
9+18=27... 56-45=11...
10+20=30... 45-23=22...
11+22=33... 78-23=55...
12+24=36...
10-3=7
15-4=11
20-5=15
25-6=19
30-7=23
35-8=27
40-9=31
45-10=35
50-11=39
55-12=43
60-13=47
65-14=51
70-15=55
75-16=59
80-17=63
85-18=67
90-19=71
95-20=75
100-21=79
105-22=83
110-23=87
115-24=91
120-25=95
125-26=99
130-27=103
13+26=39...
14+28=42...
15+30=45...
16+32=48...
17+34=51...
18+36=54...
19+38=57...
20+40=60...
21+42=63...
22+44=66...
23+46=69...
24+48=72...
25+50=75...
26+52=78...
27+54=81...
28+56=84...
29+58=87...
30+60=90...
31+62=93...
32+64=96...
33+66=99...
5 ÷1 =5
10 ÷2 =5
15 ÷3 =5
20 ÷4 =5
25 ÷5 =5
30 ÷6 =5
35 ÷7 =5
40 ÷8 =5
45 ÷9 =5
50 ÷10 =5
55 ÷11 =5
60 ÷12 =5
65 ÷13 =5
70 ÷14 =5
75 ÷15 =5
80 ÷16 5
85 ÷17 5
90 ÷18 5
95 ÷19 5
100 ÷20 5
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
4.8＋2.3= 5.6÷7= 4.7＋6.2=
3.7－0.07= 27÷0.01= 3.72＋2.28=
0.62＋0.38= 1.25×4= 0.45÷0.09=
5.2×0= 1.73＋3.2= 1.12×100=
8.7÷0.29= 10.3＋5.2= 1. 03－0.9=
12.4＋0.37= 0.04×25= 0.29－0.18=
4.83－2.53= 1.25×0.8= 1－0.02=
1.7－0.9= 3.6＋4= 8.5÷5=
6＋7.8= 3.9－2.8= 2.73－0.63=
1－0.62= 7÷0.5= 1÷4=
4－0.9= 6.3×101= 1.8÷0.9=
0.9×6= 0.1×0.01= 28.6÷1000=
1.4×0.2= 5÷2.5= 4.2÷0.3=
2.4÷0.6= 0.36÷3= 10－4.3=
60×0.05= 1.7×3= 4.5×0.2=
7×0.08= 2.8÷0.04= 4.5＋0.55=
1.6×5= 0.37×20= 2.3×0.6＝
0.81÷0.9= 6.8－0.08= 2.8－1.8＝
0.25×28= 0.72÷0.12= 96÷2.4 =
1.25×1000 =0.19×300= 0.24×500=
0.25×8= 4.2×0.4=7.2÷0.08=
5.6÷3.5= 0.06×0.3=3.6÷0.45=
0.8×0.125= 3.5×0.2=24÷0.25=
1.6÷0.25= 1.2×0.8=1.2÷0.8=
100÷2.5= 3.24＋1.76= 1－0.98=
1－0.001= 7.2×1.25= 12×0.5=
5×1.8= 6.5÷0.13=48×0.25=
19.9×2.5= 3.9×4＝ 6.30÷7＝
0.8×0.7= 48÷0.6=2.5×16=
0.9×0.6= 2.5×4=1-0.74=
3.9＋0.8= 0.7－0.19= 1.21÷11=
1.44÷9= 6.43＋1.95= 1－0.76
3.5＋7.5= 0.65÷0.5= 6.43＋1.57=
6－5.03= 0.14×6= 10÷0.4=
2.76×100= 3.56÷100=1.02×8=
35－0.35= 0÷0.25= 1000÷12.5=
1.44÷12= 0×3.56=0.36×2=
0.51÷17= 10÷0.4=0.25×8=
0.14×6= 0.85+0.15=36×2.5=
0.99÷9= 8.8÷4=7.6÷2=
4.4＋56= 2.1×32= 1.25×0.8＝
0.56＋0.44＝ 7－5.3＝ 0.8－0.23＝
1－0.89＝ 5.8＋4.2＝ 1.23－0.6＝
3－2.5＝ 2－1.3＝ 1.4×0.6＝
3.2÷8＝ 1.3×0.5＝ 8.1÷0.9＝
3.6÷6＝ 0.38＋0.43＝ 7.1－3.8＝
1.8÷0.6＝ 0.3×101＝ 1.2÷4＝
9÷2.5÷4= 3.7×5×0.2=
5.4×99＋5.4= 72×9.9＋7.2=
0.64＋0.64×99= 8×0.5×0.2=
(5.25－4)×8= 21.6－3.8－7.2=
45÷0.5÷2=4×3.7×0.25=
1.5＋4.2＋0.5= 3.6×0.2×1=
7.5×5.3÷5.3=1.7×25×4=
2.7－1.8－0.2= 1.8×6－1.8=
2.8×9＋2.8= 0.32×0.2×5=
10－0.8×10= 8.5–0.24－1.76=
6.5＋3.5＋1.8＝ 9×1.25×8=
0.25×4÷0.25×4= 5.3＋9.9＋4.7＝
4.6－4.6÷4.6= 0.8＋0.2－0.8＋0.2=
3.82＋2.5＋6.18= 4.9＋0.1－4.9＋0.1=
8.7－1.9－3.1= 0.7×16–16×0.3=
（12.5＋1.25）×0.8= （5.6＋3.5）÷0.7=
9.1÷4－3.1÷4= 8.92－0.03－1.97=
0.175÷0.25÷4=0.8×0.8×0.5=
12.5÷0.25＋7.5×4= 42÷4－32×0.25=
5.6×0.125＋4.4÷8= 2.4×0.7＋24×0.03=
5.4＋3.2＋4.6= 8.4×0.5－5.4÷2=
18.7－（9.9＋8.7= 25.4－（19.8－4.6=
4.5－1.25－0.75－0.5= 5.7×0.5－1.7×0.5
(12.6－0.75－0.25) ÷0.01= 4.8÷0.6＋4.8÷0.4=
费了一番功夫，给个分数吧
绛旓細0.00125/50= 5.6/700= 760/0.008= 4.329/6= 492/0.004= 18.63/0.03= 27脳0.43640梅80= 15脳5= 23脳3= 12脳2脳5= 480梅80= 16脳5= 27脳3= 90梅15= 48梅4= 640梅16= 39梅3= 24脳20= 32脳3= 48梅16= 12脳8= 27脳3= 56梅14= 24梅8= 14脳2= 83锛45= 560...
绛旓細锛1锛夈26脳4-25梅锛125梅25锛=99 锛2锛夈13+7脳2-8=19 锛3锛夈24脳5-6=114 锛4锛夈侊紙37-9锛壝7=4 锛5锛夈26脳4=104 锛6锛夈63-7+8梅4=58 锛7锛16脳2梅4+3=11 锛8锛91+9脳100=991 锛9锛41脳7梅2=143.5 锛10锛88-12+12脳2=100 锛11锛78脳50锛1440梅12 = ...
绛旓細鐢ㄧ畝渚挎柟娉璁＄畻涓嬮潰鍚勯 6.3+0.87+3.7+8.16= 18.75-0.43-4.57= 7.2+2.8= 0.36+0.64= 8-2.5= 1.83+2.7= 13.8+9.9= 3.8+4.29+2.1+4.2= 8.3-2.63= 32.8+5.6+7.2= 3.5+7.6= 12-6.2-3.8= 1.7+0.43+3.3= 5.4-2.5-1.4= 0.99锛1.8锛...
绛旓細1銆475锛254锛361 2銆615锛475锛125 3銆860锛168锛159 4銆465锛358锛27 5銆647锛嶏紙85锛265锛 6銆476锛嬶紙65锛29锛7銆154脳8梅16 8銆400梅25脳75 9銆16脳25梅16脳25 10銆552梅69脳8 11銆600锛120梅10 12銆侊紙600锛120锛壝10 13銆侊紙466锛25脳4锛壝6 14銆侊紙43+32锛壝凤紙357锛352...
绛旓細1 3.2锛1.68锛 2 2.8脳0.4锛 3 14锛7.4锛 4 1.92梅0.04锛 5 0.32脳500锛 6 0.65锛4.35= 7 10锛5.4锛 8 4梅20锛 9 3.5脳200锛 10 1.5锛0.06锛 11 0.75梅15锛 12 0.4脳0.8锛 13 4脳0.25锛 14 0.36锛1.54锛 15 ...
绛旓細姣忎竴閬撻噷闈㈤兘瑕佹湁鍔犲噺涔橀櫎寰楀摝~!... 绠鍗曠偣鐨,浣嗕笉瑕佽繃鍒嗗緱绠鍗!绗﹀悎灏忓浜斿叚骞寸骇鐨勯偅绉!姣忎竴閬撻噷闈㈤兘瑕佹湁鍔犲噺涔橀櫎寰楀摝~! 灞曞紑 ...(鍥)宸茬煡1+2+3+...+31+32+33=17*33,璁＄畻涓嬪紡1-3+2-6+3-9-12+...+31-93+32-96+33-99鐨勫肩粌涔犱簲(A绾)(涓)閫夋嫨棰:(1)宸茬煡a,b鏄袱...
绛旓細30. 7/19 + 12/19 脳 5/6 31. 1/4 + 3/4 梅 2/3 32. 8/7 脳 21/16 + 1/2 33. 101 脳 1/5 鈥 1/5 脳 21 34.50锛160梅40 35.120-144梅18+35 36.347+45脳2-4160梅52 37锛58+37锛壝凤紙64-9脳5锛38.95梅锛64-45锛39.178-145梅5脳6+42 40.812-700梅锛9+...
绛旓細4銆 鍒楀紡璁＄畻銆(姣忛3鍒) (1) 57涓31 鐨勭Н,绛変簬涓涓暟鐨50%,杩欎釜鏁版槸澶氬皯? (2)12涓851 鐨勭Н闄や互瀹冧滑鐨勫樊,鍟嗘槸澶氬皯? 1/1*2*3+1/2*3*...涓ょ櫨閬撳お澶氫簡,鎴戞濂藉湪甯︿簲骞寸骇鐨勫皬瀛︾敓,鍔犲噺涔橀櫎鍙渶瑕佽灏忓鐢熸帉鎻¤寰,璁粌鏃堕暱灏卞ソ浜嗐傛彁渚涗竴涓嬪吀鍨嬫渚: 绠绠: 鈶1.25x0.32x25 鈶4.8x101-4.8 鈶...
绛旓細20-8脳2梅4 420脳锛13+57锛壝90 66脳38-987梅21 196梅4+56脳12 16脳50-36梅4 锛73+65锛壝凤紙210-164锛夛紙13+47锛壝楋紙52-18锛 锛1024+4370锛壝凤紙24+38锛45 脳 2/3 + 1/3 脳 15 27. 7/19 + 12/19 脳 5/6 28. 1/4 + 3/4 梅 2/3 29. 8/7 脳 21/16 + 1/2 ...
绛旓細27. 7/19 + 12/19 脳 5/6 28. 1/4 + 3/4 梅 2/3 29. 8/7 脳 21/16 + 1/2 30. 101 脳 1/5 鈥 1/5 脳 21 31.50锛160梅40 锛58+370锛壝凤紙64-45锛32.120-144梅18+35 33.347+45脳2-4160梅52 34锛58+37锛壝凤紙64-9脳5锛35.95梅锛64-45锛36.178-145梅5脳6+...
