一道数学题的简便运算

更新时间2018-11-11 21:54:19

5.32-1.32/4    和  1.32/0.2*7.8的简便运算

5.32-1.32/4

=5.32-0.33

=4.99

没啥可简便的

1.32/0.2*7.8

=6.6×7.8

=6.6×（8-0.2）

=6.6×8-6.6×0.2

=52.8-1.32

=51.48

25×0.2×7.8×0.4用简便算法解答25×0.2×7.8×0.4=25×0.4×0.2×7.8=10×0.2×7.8=2×7.8=15.6

相关标签:数学，运算