ldcf.net
当前位置:首页 >> 3.7X3.7+3.7X7.3%3.7巧算怎么做 >>

3.7X3.7+3.7X7.3%3.7巧算怎么做

3.7X3.7+3.7X7.3-3.7 =3.7×(3.7+7.3-1) =3.7×10 =37

=7.3×3.7-7.3+7.3×7.3 =7.3×(3.7-1+7.3) =7.3×10 =73

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