ppts.net
当前位置:首页>>关于37.5%x5/7x3/8 3/8÷7用脱式计算能简便的简便的资料>>

37.5%x5/7x3/8 3/8÷7用脱式计算能简便的简便

37.5%*5/7+1/7x3/8+3/8÷7 =3/8*5/7+3/8*1/7+1/8*1/7 =3/8*(5/7+1/7+1/7) =3/8*1 =3/8

37.5%×5/7+1/7×3/8+3/8÷7 =3/8×5/7+1/7×3/8+3/8×1/7 =3/8×(5/7+1/7+1/7) =3/8×1 =3/8

37.5%*5/7+1/7x3/8+3/8÷7 =3/8*5/7+3/8*1/7+1/8*1/7 =3/8*(5/7+1/7+1/7) =3/8*1 =3/8

3/8+7/8+5/8 =15/8 -------------------------------

2-8/3/16/7-7/1脱式计算 2-3/8÷7/16-1/7 =2-3/8*16/7-1/7 =2-(6/7+1/7) =2-1 =1

213.6÷0.8÷0.3 =267÷0.3 =890

7.8÷0.26÷0.3 =7.8÷(0.26×0.3) =7.8÷0.78 =10,

脱式计算,能简便的简便: 7又5/8×1/8+3又3/8÷8+0.125 =7又5/8×1/8+3又3/8×1/8+0.125 =(7又5/8+3又3/8+1)×1/8 =12×1/8 =1.5

3.25×4.7-7.8 =15.275-7.8 =7.475 没有简便方法

3/8×[1÷(7/10-3/20)] =3/8×[1÷(14/20-3/20)] =3/8×[1÷(11/20)] =3/8×[1x20/11] =3/8×20/11 =3/2x5/11 =15/22

网站首页 | 网站地图
All rights reserved Powered by www.ppts.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com