3.27X2.5+57.3X0.25 用简便方法算

来源：百度知道 编辑：UC知道 时间：2024/05/22 02:42:30

2.5*(3.27+5.73)=2.5*9=22.5

3.27X2.5+57.3X0.25
=3.27*2.5+5.73*2.5
=(3.27+5.73)*2.5
=9*2.5
=(8+1)*2.5
=8*2.5+2.5
=20+2.5
=22.5

3.27X2.5+57.3X0.25
=32.7X0.25+57.3X0.25
=0.25*(32.7+57.3)
=0.25*90
=22.5

3.27X2.5+57.3X0.25=3.27×10X2.5÷10+57.3X0.25
=32.7×0.25+57.3X0.25
=(32.7+57.3)×0.25
=90×0.25
=(100-10)×0.25
=100×0.25-10×0.25
=25-2.5
=22.5

3.27×2.5+57.3×0.25
=3.27×2.5+5.73×2.5
=（3.27+5.73）×2.5
=9×2.5
=22.5