25秋五年级上册数学小数简便计算练习
-
简介
(乘法结合律) 3.29x0.25x4 =3.29x(0.25x4) =3.29x1 =3.29 (减法交换) 7.325-3.29-3.325 =7.325-3.325-3.29 =4-3.29 =0.71 (减法的性质) 7.325-(5.325+1.7) =7 325-5.325-1.7 =2-1.7 =0.3
本年级热门下载
同类热门下载