Question

101✘37.8-1.25✘37.8✘0.8用简便方法？

Answer 1

101✘37.8-1.25✘37.8✘0.8
=101x37.8-37.8
=（101-1）x37.8
=100x37.8
=3780

Answer 2

101✘37.8-1.25✘37.8✘0.8用简便方法？
101✘37.8-1.25✘37.8✘0.8
=100×37.8+1×37.8-(1.25×0.8)×37.8
=3780+(37.8-37.8)
=3780