1.37乘以2.5加上13.7乘以0.75它的简便方法计算是?请帮忙回答,

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1.37乘以2.5加上13.7乘以0.75它的简便方法计算是?请帮忙回答,

1.37乘以2.5加上13.7乘以0.75它的简便方法计算是?请帮忙回答,
1.37乘以2.5加上13.7乘以0.75它的简便方法计算是?请帮忙回答,

1.37乘以2.5加上13.7乘以0.75它的简便方法计算是?请帮忙回答,
1.37*2.5+13.7*0,75=(7.5+2.5)*1.37=13.7