Question

4.6×3.5 6.4×0.35-3.5简便方法？

Answer 1

运用乘法分配律使计算简便：
4.6×3.5+6.4×3.5-3.5
=（4.6+6.4-1）×3.5
=10×3.5
=35

Answer 2

那就是用计算机

Answer 3

（4+0.6）×3.5
＝3.5×4+3.5×0.6
＝15+2.1＝17.1
6.4×(0.3+0.05)-0.35
=6.4×0.3+6.4×0.05-0.35
=1.92+0.32-0.32-0.05
=1.87