ldcf.net
当前位置:首页 >> 800➗25用简便方法计算 >>

800➗25用简便方法计算

460➗25 =92x5➗5➗5 =92➗5 =18.4

18+(18x20-2.5)➗25 =18+(360-2.5)➗25 =18+357.5➗25 =18+(300+57.5)➗25 =18+(300➗25+57.5➗25) =18+(12+57.5➗25) =18+{12+(50+7.5)}➗25 =18+{12+(50➗25+7.5➗...

425x65➗25➗26x8 =17x65➗26x8 =17x65➗13x4 =17x5x4 =17x20 =340

结合律。 列式为: 2100➗42 =2100➗(7x6) =2100➗7➗6 =300➗6 =50

484➗36✖️18➗22 =484➗(36➗18)➗22 =484➗2➗22 =242➗22 =11

简便计算: 80➗16 =80➗8➗2 =10➗2 =5

510➗2➗5 =510➗(2×5) =510➗10 =51

5100➗15➗17怎么算简便 5100➗15➗17 =5100÷17÷15 =300÷15 =20

:52➗5十53➗5十54➗5十55➗5十56➗5 =(52+53+54+55+56)÷5 =54*5÷5 =54

960➗40 =(1000-40)➗40 =1000➗40-40➗40 =25-1 =24

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