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

=2.8✘(7.6+2.4) =28

8.5×7.6+2.4 =34x1.9+2.4 =68-3.4+2.4 =67

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!

7.6x2.4+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

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

8.66×2.4+7.6×8.66 =8.66×(2.4+7.6) =8.66×10 =86.6

二2.4X3X0.2十2.4X2.4 =2.4X0.6十2.4X2.4 =2.4X(0.6十2.4) =2.4X3 二7.2

14.6x2.4+ 7.6 =35.04+7.6 =43.64 -------------------------------

解:原式=2.4÷3/5-2.4x2.6 =2.4x5/3-2.4x(2+0.6) =4-2.4x2-2.4x6 =4-4.8-14.4 =-0.8-14.4 =-15.2

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