Question

0.6+五分之三×3.7+5.3×60%用递等式计算

Answer 1

首先五分之三即是3/5，分子和分母同时乘以相同倍数，大小不变，乘以2就是6/10，写成整数形式就是0.6,而60%写成整数形式也是0.6，所以式子可改写成下面那样：
0.6+五分之三×3.7+5.3×60%
=0.6+0.6×3.7+5.3×0.6
=0.6×（1+3.7+5.3） 这步是运用乘法分配律，因为0.6可以看成算式0.6×1，大小不变
=0.6×10
=6

Answer 2

0.6+五分之三×3.7+5.3×60%
=0.6+0.6*3.7+5.3*0.6
=0.6*(1+3.7+5.3)
=0.6*10
=6

Answer 3

0.6+五分之三×3.7+5.3×60%
=0.6+0.6×3.7+0.6×5.3
=0.6×(1+3.7+5.3)
=0.6×10
=6

Answer 4

0.6+五分之三×3.7+5.3×60%
=0.6+0.6*3.7+5.3*0.6
=0.6*(1+3.7+5.3)
=0.6*10
=6