求3.95加1.2x5.2和2.3x4.8x0.5的简便计算,

问题描述:

求3.95加1.2x5.2和2.3x4.8x0.5的简便计算,

3.95加1.2x5.2和2.3x4.8x0.5
等于3.95加6.24加5.52
等于15.71