18乘0.35加2.5乘1.8用简便算式计算
问题描述:
18乘0.35加2.5乘1.8用简便算式计算
答
18×0.35+2.5×1.8
=1.8×10×0.35+2.5×1.8
=1.8×3.5+1.8×2.5
=1.8×(3.5+2.5)
=1.8×6
=10.8