6.3乘99用简便方法计算,怎么算?

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/22 12:19:22
6.3乘99用简便方法计算,怎么算?6.3乘99用简便方法计算,怎么算?6.3乘99用简便方法计算,怎么算?6.3x99=6.3x(100-1)=6.3x100-1x6.3=630-6.3=623.7

6.3乘99用简便方法计算,怎么算?
6.3乘99用简便方法计算,怎么算?

6.3乘99用简便方法计算,怎么算?
6.3x99
=6.3x(100-1)
=6.3x100-1x6.3
=630-6.3
=623.7
5.6*101
=5.6(100+1)
=560+5.6
=565.6