小數(shù)乘除法練習題及簡便計算1

一、計算題（30分）1、直接寫出得數(shù)。0.45×2.5＝

0.8×1.25＝

0.3×3.6＝

0.3×0.3＝10×0.07＝

0.3×1.4＝

0.05×7＝

0.92×0.4＝0.2×0.26＝

0.14×4＝

0.02×0.1＝

1.2×0.3＝0.2×0.4＝

8.2＋1.＝

100－35.22＝

2.3×4＝.5×0.4＝

2.4×5＝

0.22×4＝

3.25×0＝0.9－0.52＝

3.99×1＝

0×3.52=12.5×488÷10=

10-1.8-7.2=

0.43+3.57=

2.5×4×12=0.9×0.8=

1.05×100=

1÷0.5=

0.96÷3=

1.47÷0.7=

5.4÷6=

0.16.5×10=

0.56×100=

3.78×100=

4÷0.8=3.215×100=

0.8×10=

4.08×100=

1.1×0.2=

0.6×0.8=

3×0.9=

2.5×0.4=

3.6×0.4=12.5×8=

50×0.04=

80×0.3=

1.1×9=

0.16×5﹦

1.78＋2.2=

9.6÷0.6=

1.2×0.5-0.4=

0.7÷0.01=

2.5×0.4=

12－3.9=

1.25×8÷1.25=6.6÷0.66=

5.37×0+4.63=

3.9＋2.03＝

4.2÷3.5＝1.6+2.4×0.3=

2.14－0.9＝27＋456＋73=

0.3×0.3=7.2＋2.8＝0.9÷0.01＝

12÷0.3=

2.87÷0.7＝13÷4＝

0.96÷0.3＝1.5×0.4＝

7÷0.25＝2.5×0.7×0.8=

8－2.5＝

16÷1.6＝

5.6×1.01=8×（2.5＋0.25）＝

0.36＋0.64＝64.32÷16＝

4.2÷0.1＝72.8÷0.8＝

8.4÷4.2＝13.8＋9.9＝

2.4×2.5＝0.05×0.8＝

2.56－0.37＝1.25×0.8×0.5＝

12×2.5＝1.23×3＝

3.2÷1.6＝3.5＋3.5×3＝

19.6÷2＝

8.8÷2.2=

0.75×4＝（1.5＋0.25）×4＝

0.5×0.8=8.4×0.2=

1.6×0.2＝

7.2×0.3=

2.8×0.3＝

0.9÷0.15=

1.8×0.4=

5.5÷0.55=

0.08×100=2.2÷0.11=

5.46＋4.54=

12.5×0.8=

0.35×0.3=1.4×5=

2.8×4=

19.6÷4=

22.5×4=

2、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÷3.3

3.68×0.25

16.9÷0.13

1.55÷3.9

3.7×0.016

13.76×0.8=

5.2×0.6

8.4×1.3

6.4×0.5

4.48×0.4

5.25×5

35.4×4.2

0.042×0.54

0.76×0.32

0.25×0.046

2.52×3.4

1.08×25

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）2.5×7.1×4

16.12×99＋16.12

5.2×0.9＋0.9

7.28×99+7.28

4.3×50×0.2

64－2.64×0.5

26×15.7＋15.7×24

(2.275＋0.625)×0.28

3.94+34.3×0.2

2.7×5.4×3.9

1.2×(9.6÷2.4)÷4.8

8.9×1.1×4.7

6.58×4.5×0.9

3.6×9.85-5.46

8.05×3.4+7.6

2.8×0.5+1.58

4.8－4.8×0.5

32＋4.9－0.9

(1.25－0.125)×856.5×99＋56.5

4.8×100.1

7.09×10.8－0.8×7.094.85+0.35÷1.4

12.5×0.4×2.5×8

0.87×3.16+4.64

9.5×101

0.68÷（5.2-3.5）×1.25

8.7×17.4-8.7×7.4

40.5÷0.81×0.18

4.8×（15÷2.4）

2.13.×0.×8257

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

4．2.×1.25＋4.2×1.75

2.37×6.3+2.37×3.7

2.5×1.25×0.32

3.8×10.1

2.5×(3.8×0.04)

7.69×101

3.8×10.1

0.25×39+0.25

0.125×72

46×0.