六年级数学上册,分数简便计算常考类型

六年级数学上册,分数简便计算常考类型


简介:
-× =× =× = ×2.4 =×2.4+×2.4 =2+0.9 =2.9 ×4+0.25×4+ =×4+×4+×1 =× =×10 =2.5 ×+×- =× =×1 = ×19- =×(19-1) =×18 =14 57× =(56+1)× =56×+1× =5+ =5