我发现:一个数的倍数的个数是其中最小的倍数是。
1.25 1 2
×4 9××9
+ = 1- = + =
- = - = - =
①
②
99×7.2= 45×10.1= ÷ = + ﹣ = 1.25×3.2×2.5=
28.9÷1.25÷0.8= 56.5×9.9+5.65= (2.5﹣0.25)×0.4=
78.2﹣8.2×1.3= 4.5÷1.5÷1.5=