3.58×67+35.8×3.7-0.358×40 用简便方法计算
问题描述:
3.58×67+35.8×3.7-0.358×40 用简便方法计算
答
3.58 X 67 + 35.8 X 3.7 - 0.358 X 40
= 3.58 X 67 + 3.58 X 37 - 3.58 X 4
= 3.58 X ( 67 + 37 - 4 )
= 3.58 X ( 67 + 33 )
= 3.58 X 100
= 358