来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/11/12 03:26:57
用简便方法计算下面各题.
9÷0.125 25.25×0.65×4÷0.65 0.485×102-48.5
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9÷0.125
=9* 1/8
=9/8
25.25×0.65×4÷0.65
=25.25*4*(0.65/0.65)
=25.25*4*1
=101
0.485×102-48.5
=48.5*1.02-48.5
=48.5*(1.02-1)
=48.5*0.02
=0.485*2
=0.97