ldcf.net
当前位置:首页 >> 八点八乘一点二五用简便的,脱式计算 >>

八点八乘一点二五用简便的,脱式计算

8.8×1.25 =1.1×(8×1.25) =1.1×10 =11 或者: 8.8×1.25 =(8+0.8)×1.25 =8×1.25+0.8×1.25 =10+1 =11

=40×2.5×8.2 =100×8.2 =820

=7×(8×1.25) =7×10 =70 希望能帮到你,请采纳正确答案,点击【采纳答案】,谢谢 ^_^ 你的点赞或采纳是我继续帮助其他人的动力!

原式 =1.6x7.5x1.25 =0.2x8x7.5x1.25 =(0.2x7.5)x(8x1.25) =1.5x10 =15

5.2×10.1 =5.2×10+5.2×0.1 =52+0.52 =52.52

括号里的20-1点二五×0点八括起来除以一点九脱式计算 解: (20-1.25×0.8)÷1.9 =(20-1)÷1.9 =19÷1.9 =10

三点七五乘以一点二五乘以8脱式计算 3.75×1.25×8 =3.75×10 =37.5

0.8×0.25×0.4×12.5 =0.8×12.5×(0.25×0.4) =10×0.1 =1

解:20-8*3=?-25 20-24=?-25 -4=?-25 ?=21

原式 =320x25x125 =(40x8)x25x125 =(40x25)x(8x125) =1000x1000 =1000000 或者 =(4x80)x25x125 =(4x25)x(80x125) =100x10000 =1000000

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