18.25*5分之59-11.8*4分之69 简便方法计算.
问题描述：
18.25*5分之59-11.8*4分之69 简便方法计算.
答
18.25*5分之59-11.8*4分之69
=3.65*59-2.95*69
=3.65*59-2.95*59-2.95*10
=（3.65-2.95）*59-29.5
=0.7*59-29.5
=41.3-29.5
=11.8