nynw.net
当前位置:首页 >> 2.8×7.6+2.4×0.8用简便方法计算 >>

2.8×7.6+2.4×0.8用简便方法计算

2.8×7.6+2.4×0.8 =2.8×7.6+2.4×(2.8-2) =2.8×7.6+2.8×2.4-2.4×2 =2.8×(7.6+2.4)-4.8 =2.8×10-4.8 =28-4.8 =23.2

7.6x2.4+6.5x7.6+7.6+0.76 =7.6x(2.4+6.5+1+0.1) =7.6x(2.4+1+6.6) =7.6x(9+1) =7.6x10 =76

2.4×1.76-7.6×0.24用简便方法计算 =2.4×(1.76-0.76) =2.4×1 =2.4

2.4×7.6+6.5×7.6+0.76×11 =7.6×(2.4+6.5+1.1) =7.6×10 =76 希望我的回答对您有帮助,有问题可以追问。 满意请及时采纳,谢谢!

7.6+2.4*3.6 =7.6+8.64 =16.24

6.9+7.6-6.9+2.4 =(6.9-6.9)+(7.6+2.4) =0+10 =10 行家正解,不明白可以追问!祝您学习进步 满意请点击下面的【选为满意回答】按钮,O(∩_∩)O谢谢

8.5+7.6-8.5+2.4=(8.5-8.5)+(7.6-2.4)=5.2.

简便计算7,6×2.4-3.64 7,6×2.4-3.64 =18.24-3.64 =14.6

(1)7.6×0.7+0.3×7.6=7.6×(0.7+0.3)=7.6×1=7.6;(2)1.25×0.96×0.8 =(1.25×0.8)×0.96=1×0.96=0.96;(3)2.4×1.02 =2.4×(1+0.02)=2.4+2.4×0.02=2.4+0.048=2.448;(4)0.55×7.5-0.55×6.5=0.55×(7.5-6.5)=0.55×1=0.55.

6.7+2.4×6 =6.7+14.4 =(6+14)+(0.7+0.4) =20+1.1 =21.1

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