www.gsyw.net > 二点三乘七点八加九点九乘七点二加二点三乘二点一简便运算

二点三乘七点八加九点九乘七点二加二点三乘二点一简便运算

2.3x7.8+9.9x7.2+2.3x2.1 =(2.3x7.8+2.3x2.1)+9.9x7.

8.3*9.9+0.83 = 8.3*(9.9 +0.1) =8.3*10 =83

39.7×2.8+3.97×72 =3.97×28+3.97×72 =3.97×(28+72)

9.99×2.22+3.33×3.34 =3.33×6.66+3.33×3.34 =3.33×(

9.72÷7.2-5.3×2.04 =1.35-10.812 =-9.462

36 X 1.09 + 1.2 X 67.3 = 12 X 3.27 + 12 X 6.73 = 1

12.26×7.26×2.32÷1.9÷1.4÷2.9 =1226×72.6×2.32÷19÷14

2.73x99 =2.73x(100-1) =2.73x100-2.73 =273-2.73

十三点七乘零点四减二十五点八乘八点四加三十七点九乘一点六简便运算 13.7*0.4-25.8*8.

3.9×3.3 =12.87 2×25 =50 乘法是指将相同的数加起来的快捷方式。

网站地图

All rights reserved Powered by www.gsyw.net

copyright ©right 2010-2021。
www.gsyw.net内容来自网络,如有侵犯请联系客服。zhit325@qq.com