38.2×7.6-3.82×26简算,

问题描述:

38.2×7.6-3.82×26简算,

=38.2x7.6-38.2x2.6=38.2×(7.6-2.6)=38.2×5=191是3.82×26简算啊,3.82一个小数点提前,26一个小数点移后,乘起来还是相等,不过就达到了简便的效果