0.6+五分之三×3.7+5.3×60%用递等式计算

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0.6+五分之三×3.7+5.3×60%用递等式计算
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0.6+五分之三×3.7+5.3×60%用递等式计算
0.6+五分之三×3.7+5.3×60%用递等式计算

0.6+五分之三×3.7+5.3×60%用递等式计算
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

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

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

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