0.25*7.6+2.5*0.24(用简便方法计算)
问题描述:
0.25*7.6+2.5*0.24(用简便方法计算)
答
0.25*7.6+2.5*0.24
=2.5x0.76+2.5x0.24
=2.5x(0.76+0.24)
=2.5x1
=2.5