300道分数乘除法(要口算的)

如题所述

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)
1/2+1/3
2/1-5/4
9\3*3\9
3/4+5/4=? 4/5+6/5=? 5/6+6/7=?
三分之一加六分之五
五分之七加九分之六 八分之三乘六分之五 七分之四除以十一分之六
5/3*5/3
56/7*25/2
16/2*15/2
2/1*4/1
6/5*3/1
5/3*9/4
4/3*6/1
12/7*1/4
7/1*7/3
5/1*5/3
4/1*8/3
2/1*8/3
6/5*3/2
3/2*9/4
4/1*7/6
5/4*8/5
5/4*4/3
7/1*7/3
5/1*5/3
4/1*8/3
2/1*8/3
6/5*3/2
3/2*9/4
4/1*7/6
5/4*8/5
4.25*4/25*4
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
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)
1/2+1/3
2/1-5/4
9\3*3\9
能找到的都在了。。。
温馨提示:内容为网友见解,仅供参考
第1个回答  2009-01-25
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
636-198= 3.6÷0.036= 7÷19= 3.7×0.1% = 6÷(-)= 8.1+= ×(15+)= 1-+= 0.4×0.2= 9-0.9= 10.75-(0.75+3.4)= 72÷0.4=
24÷= 0.2-= (3+)×5= 1÷×= +÷ = 3005-899= 7.25+2.75= 9.8÷98= 0.125×29×8 = 578+216= 18.25-3.3= 3.2- = ×8.1= + = 2 ÷3= 0.99×9+0.99= 2 × = 26.26÷26= 21 ÷7= 26.26÷26= 4.57+6.43= 7.9×11-7.9= 1 ×8+1 ×2= 3+ -3+ =
0.1×30%= 2÷1%-2= ÷ =
1.8×4×0.5= 1.5-1.5×0.3= 1 ×8+1 ×2= 3.14×32= += 100×0.1%=

五年级数学小数除法单元练习题

填空。

.a. 根据0.8×12.5=10写出两道除法算式( 、 )。

b. 6.4÷0.8=( )÷8 20.5÷0.25=( )÷25

0.3÷0.12=( )÷( ) 2.4÷0.004=( )÷( )

在○里填上 〉、〈 或 = 。

7.67÷0.23 ○ 7.67 7.67÷2.3 ○ 7.67

7.67÷1 ○ 7.67 7.67÷23 ○ 7.67

d. 0.9954保留一位小数约是( ),保留两位小数约是( ),

保留三位小数约是( )。

列竖式计算,并验算。

2.862÷1.08 47.04÷56

求未知数X。

2.04+X=3.76 X-0.52=4.48

0.54×X=0.648 33.8÷X=0.26

用递等式计算(能简算的要简算)。

10.24÷1.25÷8 126.5×0.25×40

8.8×(12.5×9.9) 3.79×78+5.21×78+78

应用题。

a.一辆汽车2.5小时行驶150千米。照这样计算,行驶450千米
路程需要多少小时?

b.一间教室长8.45米,是宽的1.3倍,求教室的面积为多少平方米?
周长呢?

c.面粉厂用14吨小麦加工成12.1吨面粉,平均1吨小麦可以加工成
多少吨面粉?(得数保留两位小数)

地球绕太阳公转,在一天中,它的行程是257万千米。算一算,地
球以每秒多少万千米的速度围绕太阳公转?(得数保留整数)

这个行不行啊
第2个回答  2009-01-25
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