6.32×3.1+63.2×0.9+6.32×0.9 简便计算 ⊙▽⊙
问题描述:
6.32×3.1+63.2×0.9+6.32×0.9 简便计算 ⊙▽⊙
答
原式=6.32 x 3.1 +6.32 x 10 x 0.9 + 6.32 x 0.9
=6.32 x (3.1+9+0.9)
=6.32 x 13
=83.16