4.6乘56+48乘4.6减4.6乘4

问题描述:

4.6乘56+48乘4.6减4.6乘4

乘法分配率逆向运用 4.6乘(56+48-4)=4.6乘100=460

4.6 × 56 + 48 × 4.6 - 4.6 × 4
= 4.6 × (56 + 48 - 4)
= 4.6 × (104 - 4)
= 4.6 × 100
= 460