可以简便计算,把10.1拆成10+0.1,再进行乘法计算,也就是8.9×10.1=8.9×(10+0.1)=8.9×10+8.9×0.1=89+0.89=89.89,谢谢
8.9×10.1简便算法?
8.9×10.1
=8.9×(10+0.1)
=8.9×10+8.9×0.1
=89+0.89
=89.89
8.9×10.1=8.9×(10+0.1)=8.9×10+8.9×0.1=89+0.89=89.89
8.9×10.1
=8.9×(10+0.1)
=89+0.89
=89.89
简便计算如下:
8.9×10.1
=8.9×(10+0.1)
=8.9×10+8.9×0.1
=89+0.89
=89.89