100.37×3.4+1.7×109.26简算

问题描述:

100.37×3.4+1.7×109.26简算

原式
=200.74×1.7+1.7×109.26
=1.7×(200.74+109.26)
=1.7×310
=1.7×(300+10)
=1.7×300+1.7×10
=510+17
=527