1.5×8.4+3×0.3+15×10% (脱式计算)怎么解答?急要
问题描述:
1.5×8.4+3×0.3+15×10% (脱式计算)怎么解答?急要
答
1.5×8.4+3×0.3+15×10%
=1.5X8.4+1.5X2X0.3+1.5X10X10%
=1.5X8.4+1.5X0.6+1.5X1
=1.5X(8.4+0.6+1)
=1.5X10
=15