小數(shù)乘除法計算題2010-02-07 09:24乘法：
5.6×2.9
3.77×1.8
0.02×96
5.22×0.3
9.99×0.02
4.67×0.9
5×2.44
1.666×6.1
9.432×0.002
5.6×6.5
4.88×2.9
5.61×4.3
8.9×2.4
5.5×55
9.77×0.02
1.384×5.1
8.78×83
2.6×61
0.059×0.2
4.268×1.7
57×5.7
9.46×2.85
17.8×6.4
1.5×4.9
2.5×0.88
5.555×5.2
2.22×3.33
7.658×85
36.02×0.3
56.78×8
除法：
85.44÷16
42.84÷7
101.7÷9
67.5÷15
230.4÷6
21.24÷36
0.736÷23
43.5÷12
35.21÷7
39.6÷24
6.21÷0.03
210÷1.4
51.3÷0.27
91.2÷3.8
0.756÷0.18
0.66÷0.3
11.97÷1.5
69.6÷2.9
38.4÷0.8
15÷0.06
（循環(huán)小數(shù)的用簡便方法,除不盡保留2位小數(shù)）：
8.2÷0.12
0.8÷0.9
76.4÷5.4
4.7÷3
1.25÷1.2
32÷42
14.36÷2.7
8.33÷6.2
1.7÷0.03
2.41÷0.7
用豎式計算
0.396÷1.2=0.756÷0.36=15.6×13=
0.18×15= 0.025×14=3.06×36=
0.04×0.12＝ 3.84×2.6≈ 5.76×3＝（保留一位小數(shù)）
7.15×22 90.75÷3.33.68×0.25
16.9÷0.131.55÷3.93.7×0.016
13.76×0.8= 5.2×0.68.4×1.3
6.4×0.54.48×0.45.25×5
35.4×4.20.042×0.54 0.76×0.32
0.25×0.046 2.52×3.41.08×25
0.12×0.5×0.16＝ 4.8×0.25＝0.125×1.4≈（保留兩位小數(shù)）
2.5÷0.7=（保留三位小數(shù)） 10.1÷3.3= （商用循環(huán)小數(shù)）
10.75÷12.5= （用乘法驗算）3.25×9.04= （用除法驗算）

3、脫式計算（能簡算的要簡算）
2.5×7.1×416.12×99＋16.125.2×0.9＋0.9
7.28×99+7.28 4.3×50×0.264－2.64×0.5
26×15.7＋15.7×24 (2.275 ＋0.625)×0.28
3.94+34.3×0.2 1.2×(9.6÷2.4)÷4.8

8.9×1.1×4.72.7×5.4×3.9 3.6×9.85-5.46
8.05×3.4+7.66.58×4.5×0.92.8×0.5+1.58
32＋4.9－0.94.8－4.8×0.5(1.25－0.125)×8
4.8×100.156.5×99＋56.5 7.09×10.8－0.8×7.09
4.85 + 0.35 ÷ 1.4
8.7 × 17.4 - 8.7 × 7.4
12.5×0.4×2.5×80.87×3.16+4.649.5×101
0.68 ÷（5.2 -3.5）× 1.25
40.5 ÷ 0.81 × 0.184.8 ×（15 ÷ 2.4）
6.81+6.81×99 0.25×185×40 4.4×0.8－3.4×0.8
(9.37+9．37+9．37+9．37)× 2．5
2.37×6.3+2.37×3.7 2.5×1.25×0.323.8×10.1
2.5×(3.8×0.04) 7.69×101 3.8×10.1
0.25×39+0.250.125×72 46×0.33+54×0.33
(8×5.27) ×1.256.81+6.81×99 0.25×185×40
6.8×0.75÷0.5 3.75÷0.125–2.75 1.53+23.4÷7.2
9.5×9913.5×0.98 12.5×8.8
二、解方程：
54-X=24 7X=49 126÷X=42
13+A=28.52.4X=26.47.5x－3x=18
5×1.3-2x=5.5 24x+6x=63.65.6x+4.4x=5.2
x＋3.86=5.46
17.89－x=12.89
40.8＋x=57.3
x－3.25=16
2x＋0.82＝8.2
3＋0.5x＝7
7.8÷x＝2.6
80x÷4＝12
5－0.9x＝2.75
2x＋0.4x=48
6－2x＋6x=18
35x＋13x=9.6
0.52×5－4x=0.6
0.7(x＋0.9)=42
1.3x＋2.4×3=12.4
3.5x = 140
2x +5 = 40
15x+6x = 168
5x＋1.5 = 4.5
13.7—x = 5.29
4.2 × 3—3x = 5.1 (寫出檢驗過程)
20.5－4x=8.1
3.6x÷1.2=9.75
18×1.5－1.7x=13.4
18.5x－9.9x=1.721
9.2x+1.5x=32.1
7.2×5－8x=11.2
4x＋3×0.7＝6.5
(口算)
0.6×1.2=0.84÷0.6=4.5×0.1=
15×0.4=0.1×0.5=2.8÷7=
100÷0.01=1.4×3=0.72÷8=
6÷0.03=0.5×0.6=40×0.9=
4÷0.5=7×2.1=8.89+0.1=
24×0.25=0.1÷0.01=2.4×0.8=
9×0.4=10×0.01=30.2-3.02=
4.3-0.25=1-0.82=9.6÷0.3=
2.6×0.01=0×25.4=4.8×0.4=
7.2＋2.8=
12×2.5＝
2.63＋0.37＝
0.7×16－16×0.2=
0.96÷0.3＝
1.5－4.5=
2.5×0.4
1.4×2.5×4＝
8－2.5＝
6÷1.2=
9.2÷2.3=
24÷4＋56÷4＝
0.36＋0.64＝
4÷0.25=
1.8×5=
30×（200＋3）＝
8.4÷4.2=
8×1.5＝
4.8÷0.3=
2.73＋1.5×4＝
計算下面各題(能簡算的要簡算)
7.05×23.7+7.05×76.3
0.125×3.2×2.5
12.81－(1.5+7.81)
8.7×2.6+6.4×8.7+8.7
1025－1125÷4.5×3.6
12.25－3.1＋0.85－6.17
（1.9－1.9×0.9）÷（3.8－2.8）
2.65×1.7＋1.35×1.7
列豎式計算,得數(shù)保留一位小數(shù).
1.2×1.4＝0.37×8.4＝3.14×2.8＝
0.85×1.12＝0.86×5.4＝0.15×2.34＝
40÷14＝26.37÷31＝45.5÷38＝
1560÷35＝4.8÷2.3＝1.55÷3.9＝
7.2÷2.1＝3.87÷7＝146.4÷13＝
5.63÷6.1＝2.84×0.03＝0.38×0.13＝
26.37÷31＝32÷42＝2.84×0.03＝
4.8÷23＝0.382×0.13＝4.2÷4.5＝
列豎式計算
1.64＋2.35=8.65－6.31= 28.448÷14= 0.58×250= 12.5＋3.6=10.88÷34= 10－7.64= 1.86×7= 13.88－6.29= 926×0.15= 8÷500=26.3＋7.93= 23×7.06=100.2－2.28= 44÷9（精確到百分位）
三、計算（能簡便的用簡便方法計算）
8×25×1．25×16
4．04×250
45．55－（6．82＋15．55）
3．2×99＋3．24.8×39＋61×4．834．52－17．87－12．23
2．5×56+4．5×65489×101－4894．57+3．17+3．43+5．83
4．6×56＋48×4．6－4．6×4
豎式計算：
18÷24=43.68÷26=25.3÷0.88=
0.1575÷3.15=0.612÷1.8=16.787÷0.28
（保留一位小數(shù)）
1、 算下面各題
2.36×0.222.8×4.583.57÷4.2 82.8÷36
45×2.463.6÷0.24 382.5÷45 6.4×5.48
2、 簡便計算
3.6×2.5+7.5×3.62.5×1.20.125×32 4.3×0.96.5×1023.25×99+3.25
18÷24= 43.68÷26=25.3÷0.88=
0.1575÷3.15= 0.612÷1.8=16.787÷0.28