一道数学题的简便运算
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
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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
下一篇：某超市购进一批苹果和梨