小数简便计算习题

小数简便计算（1）4.56×0.4×2.5    12.5×2.7×0.8     12.5×32×0.252.5×32小数简便计算（2）12.5×56           25×0.360.25×10.4          12.5×8.8                  小数简便计算（3）99×0.353.7×1.8－2.7×1.8  95.7×0.28＋6.3×0.28－0.28×2  小数简便计算（4）1.08×9＋1.0848×0.56＋44×0.4848×0.56＋44×0.4853×10.1     4.2×6.51＋3.49×4.2      25×7.3×0.4     0.125×96                 12.5×10.8  （20－4）×0.25   45×21－50×2.1   45×1.58＋5.5×15.8       9.99×2.22＋3.33×3.34   3.7×1.4×0.05    72×0.81+10.41.5×102                  1.4×25+3.45     1.25×0.7×0.8   2.7×3.7+0.37×73       8.7×99         小数简便计算（5）0.8×（12.5–1.25）  1.25×0.4×80×2.55×1.03×0.2  32×1.25                                    小数简便计算（6）0.45×9925×6.8×0.04

0.25×32×0.1256.4×1.25×12.5

小数简便计算（7）0.25×16.2×4(1.25－0.125)×83.72×3.5＋6.28×3.5

56.5×9.9＋56.5

小数简便计算（8）

15.6×13.1-15.6－15.6×2.14.8×7.8＋78×0.5273.8－1.64－13.8－5.363.6×102

66.86－8.66－1.34

0.25×16.2×4

3.72×3.5＋6.28×3.5

36.8－3.9－6.1

5.48－(9.4－0.52)

4.8×7.8＋78×0.52

6.4×0.25＋3.6÷4

4.8－4.8×0.5

32＋4.9－0.9

(1.25－0.125)×84.8×100.1

56.5×9.9＋56.5

7.09×10.8－0.8×7.094.02＋5.4＋0.98

5.17－1.8－3.2

320÷1.25÷8

小数简便计算（9）13.75－(3.75＋6.48)3.68＋7.56－2.68

7.85＋2.34－0.85＋4.66

1.25×2.5×32

小数简便计算（10）5.6－1.8－15.6－7.23.82＋2.9＋0.18＋9.1

9.6＋4.8－3.6

9.6÷0.8÷0.4

小数简便计算（11）

7.14－0.53－2.475.27＋2.86－0.66＋1.63

13.35－4.68＋2.65

4.2×99＋4.2小数简便计算（12）

47.8－7.45+8.8

0.398+0.36+3.64

15.75+3.59－0.59+14.25

3.6－3.6×0.842.5－(6.07＋1.13)

18.76×9.9＋18.763.52÷2.5÷0.4

3.9－4.1＋6.1－5.9

3.6－0.6×23.65×10.1

15.2÷0.25÷4

10×0.22+0×0.22

8.36+12.6+1.643.92×99+3.926.01+(21.51+3.99)7.83+(37.81+2.17)4.85-1.42+0.428.23-(83.8-79.77)6.25×0.86-2.25×0.8688.76-60.11+17.11小数简便计算（13）6.05+6.13-2.05+47.870.68×1017.97×999.96×101小数简便计算（14）5.1×1011.49+(15.18+8.51)0.125×8.03×83.69+(21.08+6.31)小数简便计算（15）13.08-(32.8-27.92)0.17×0.19+9.83×0.1965.48-13.64+10.640.25×36小数简便计算（16）7.6×0.8+0.2×7.6

0.85×19925x32x2.53.2×0.6＋2.8×0.6

0.39x1993.65x10.10.85x9.912.9x99+12.9

7.09x10.8-0.8x7.095.4x11-5.40.65x1012.5x26+2.5x6+80.25×16.2×4(1.25－0.125)×8320÷1.25÷815.6×13.1－15.6－15.6×2.1

3.72×3.5＋6.28×3.514.8×7.8＋78×0.520.8×100.13.6×102

小数简便计算（17）7.09×10.8－0.8×7.0918.76×9.9＋18.763.52÷2.5÷0.456.5×9.9＋56.5

小数简便计算（18）

15.6×13.1－15.6－15.6×2.14.8×7.8＋78×0.524.8×100.156.5×9.9＋56.5小数简便计算（19）7.09×10.8－0.8×7.0918.76×9.9＋18.76320÷1.25÷83.83×4.56＋3.83×5.44

小数简便计算（20）

3.52÷2.5÷0.49.7×99＋9.73.14×0.68＋31.4×0.0323.65×10.1

27.5×3.7－7.5×3.78.54÷2.5÷0.40.65×1013.2×0.25×12.5

(45.9－32.7)÷8÷0.1255.6÷1.25÷0.8÷2.5÷0.44.36×12.5×812.7×9.9＋1.27

7.2×0.2＋2.4×1.48.9×1.017.74×（2.8－1.3）＋1.5×2.263.9×2.7＋3.9×7.3

18－1.8÷0.125÷0.821×（9.3－3.7）－5.65.4×11-5.463.4÷2.5÷0.4

小数简便计算（21）0.35×1.25×2×0.832.4×0.9＋0.1×32.4（2.5－0.25）×0.49.16×1.5－0.5×9.16

小数简便计算（22）

3.6－3.6×0.50.8×（4.3×1.25）3.12＋3.12×9928.6×101－28.6

小数简便计算（23）

0.86×15.7－0.86×14.72.4×1022.31×1.2×0.57.6×0.8＋0.2×7.6

小数简便计算（24）0.85×1990.25×8.5×41.28×8.6＋0.72×8.610.4－9.6×0.35

12.5×0.96×0.80.25×360.25×0.73×40.32×403

46×57＋23×860.79×199101×0.87-0.91×8710.7×16.1-15.1×10.7

3.65×4.7－36.5×0.370.9990×0.3－0.1111×2.715.6×23.1－15.6－15.6×12.125.6－(0.23＋5.6)－1.7712.96－(0.96－1.52)3.14×1.9＋31.4×0.81小数简便计算（25）(3－0.75)÷0.25×464×1.25×11×2.53.893÷(3.9×0.1)×(7.8÷20)9.72×101－9.72小数简便计算（26）8.2×1.1＋3.3×0.6587.47－4.62－87.47－3.38(3.9＋3.9＋3.9＋3.9)×2.5小数简便计算（27）(58＋360)÷(64－45)4.8+8.63+5.2+0.375.93+0.19+2.81

1.76+0.195+3.24小数简便计算（28）2.35+1.713+0.287+7.65

0.134+2.66+0.8661.27+3.9+0.73+16.13.45×997.5＋4.9－6.53.07－0.38－1.62

1.29＋3.7＋2.71＋6.3

8－2.45－1.552.7－（3.7＋0.84）

7.6×0.8＋0.2×7.6

0.8×（4.3×1.25）

3.12＋3.12×99

（4.23＋6.17）×0.8

0.86×15.7－0.86×14.7

（2.5－0.25）×0.43.6－3.6×0.59.16×1.5－0.5×9.16

66.86－8.66－1.340.25×16.2×4(1.25－0.125)×8小数简便计算（29）3.6×1023.72×3.5＋6.28×3.536.8－3.9－6.115.6×13.1－15.6－15.6×2.1小数简便计算（30）4.8×7.8＋78×0.5232＋4.9－0.94.8×100.156.5×9.9＋56.5小数简便计算（31）7.09×10.8－0.8×7.0925.48－(9.4－0.52)4.2÷3.5320÷1.25÷8小数简便计算（32）18.76×9.9＋18.763.52÷2.5÷0.43.9－4.1＋6.1－5.94.2×99＋4.21.25×2.5×323.65×10.115.2÷0.25÷40.89×100.1146.5－(23＋46.5)3.83×4.56＋3.83×5.444.36×12.5×89.7×99＋9.727.5×3.7－7.5×3.78.54÷2.5÷0.40.65×1013.2×0.25×12.5(45.9－32.7)÷8÷0.1253.14×0.68＋31.4×0.0325.6÷1.25÷0.8÷2.5÷0.4小数简便计算（33）7.2×0.2＋2.4×1.48.9×1.017.74×（2.8－1.3）＋1.5×2.263.9×2.7＋3.9×7.3小数简便计算（34）18－1.8÷0.125÷0.812.7×9.9＋1.2721×（9.3－3.7）－5.615.02-6.8-1.02小数简便计算（35）5.4×11-5.42.3×16+2.3×23+2.39.43-（6.28-1.57）3.65×4.7－36.5×0.37小数简便计算（36）13.7×0.25－3.7÷42.22×9.9+6.66×6.7101×0.87-0.91×870.79×19910.7×16.1-15.1×10.74.8+8.63+5.2+0