Question

5.3x1.7+1.4x1.6能简算吗?

Answer 1

可以简算，根据题意列式计算如下：
5.3×1.7+1.4×1.6
=5.3×2-5.3×0.3+（1×2+0.4×0.6)
=10.6-1.59+2.24
=12.84-1.59
=11.25

Answer 2

将5.3*1.7改为（5+0.3）*1.7；
1.4*1.6改为（1.5-0.1）*（1.5+0.1）
5.3*1.7+1.4*1.6
=（5+0.3）*1.7+（1.5-0.1）*（1.5+0.1）
=5*1.7+0.3*1.7+1.5*1.5-0.1*0.1
=8.5+0.51+2.25-0.01
=9.01-0.01+2.25
=11.25

Answer 3

原式可以变化为
5.3*1.7+1.4*(1.7-0.1)
=5.3*1.7+1.4*1.7-1.4*0.1
=(5.3+1.4)*1.7-0.14
=(7-0.3)*1.7-0.14
=7*1.7-0.3*1.7-0.14
=11.9-0.51-0.14
=11.25

Answer 4

5.3×1.7+1.4×1.6
=5.3×（1.6+0.1）+1.4×1.6
=5.3×1.6+0.53+1.4×1.6
=（5.3+1.4）×1.6+0.53
=6.7×1.6+0.53
=10.72+0.53
=11.25

Answer 5

不能简算..