用简便方法计算:32×0.65+3.2×3.5
问题描述:
用简便方法计算:32×0.65+3.2×3.5
答
32×0.65+3.2×3.5
=3.2×6.5+3.2×3.5
=3.2x(6.5+3.5)
=3.2x10
=32