Question

五点五乘九点八的简便算法脱式计算

Answer 1

五点五乘九点八的简便算法脱式计算

5.5×9.8
=5.5×（10-0.2）
=5.5×10-5.5×0.2
=55-1.1
=53.9

0.47乘零点五乘零点八的简便算法怎么计算

0.47X0.5X0.8
=0.47X(0.5X0.8)
=0.47X0.4
=0.188

五点五乘九点八用简便方法作怎么列式子

五点五乘九点八
=5.5×（10-0.2）
=5.5×10-5.5×0.2
=55-1.1
=53.9

二点五乘零点四八简便算法脱式

原式
=2.5x0.48
=2.5x(4x0.12)
=2.5x4x0.12
=10x0.12
=1.2

或者
=2.5x(0.4x1.2)
=2.5x0.4x1.2
=1x1.2
=1.2

一点二五乘十点七乘八的简便算法怎么算

=1.25×8×10.7
=10×10.7
=107

72×0点五九家五点9×2点八的简便算法是怎么算

72x0.59+5.9x2.8
=5.9x（72x0.1+2.8）
=5.9x（7.2+2.8）
=5.9x10
=59
谢谢，请采纳

一点2五乘九点二简便计算

1.25*9.2
=1.25*（10-0.8）
=1.25*10-1.25*0.8
=12.5-1
=11.5

零点五乘2.33乘八的简便计算

0.5*2.33*8
=4*2.33
=9.32

40.36减十五点7+2点八的和的简便算法

40.36减十五点7+2点八的和的简便算法
40.36减十五点7+2点八的和
=40.36-(15.7+2.8)
=40.36-18.5
=21.86

5.18乘九点三加0.85的脱式简便算法

5.18×9.3+0.85
=5.18×(10-0.7)+0.85
=5.18×10-5.18×0.7+0.85
=51.8-3.626+0.85
=52.65