ppts.net
当前位置:首页>>关于68×39+39×32用简便算法计算的资料>>

68×39+39×32用简便算法计算

68×39+39×32用简便算法计算 68×39+39×32 =(68+32)×39 =100×39 =3900

68*39 =68*(40-1) =68*40-68*1 =2720-68 =2652

99×39+39 =(99+1)×39 =100×39 =3900

您好: 199×39+39 =39x(199+1) =39x200 =7800 ~如果你认可我的回答,请及时点击【采纳为满意回答】按钮~ ~手机提问者在客户端右上角评价点【满意】即可。 ~你的采纳是我前进的动力~~ ~如还有新的问题,请另外向我求助,答题不易,敬请谅解~~ O(∩...

68×39+39 =(68+1)×39 =69×39 =2691 你好,本题已解答,如果满意,请点右上角“采纳答案”。

12×39 +36×87 =36×13 +36×87 =36×(13+87) =36×100 =3600

62+39+38 =62+38+39 =100+39 =139

32+49x(1/7)=39 (39-32)÷49 =7÷49 =7/49 =1/7 谢谢,请采纳

39×68-39+33×39 =39×(68-1+33) =39×100 =3900

(68+33-1)×39=100×39=3900

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