mdsk.net
当前位置:首页 >> 6.5×9.9怎么简便运算 >>

6.5×9.9怎么简便运算

=6.5+6.5×99 =6.5×(1+99) =6.5×100 =650

0.65+9.9×6.5 =6.5*0.1+9.9*6.5 =6.5*(0.1+9.9) =6.5*10 =65

5/6×5/9+5/9×1/6 =5/9×(5/6+1/6) =5/9×1 =5/9

6×15×9 =6x9x(10+5) =54X10十54X5 =540+270 =810

9.8x6.5 =(10-0.2)x6.5 =10*6.5-0.2*6.5 =65-1.3 =63.7

妙妙花 发表于 2014-4-3 15:47 说的太好了,学习了 所以啦,赶紧让你家娃练起来~明天我就发一个计算天天练的帖子,大家一起练起来吧!

6×8+6=6×9=9×5+9

1、61.876,2、=12.5*8+12.5*0.08=101,3、=65*9.9+65*0.1=650

7.6×5+9×7.6 =7.6×(5+9) =7.6×14 =106.4 你好,本题已解答,如果满意 请点右上角“采纳答案”。

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