A.1.22 | B.0.122 | C.12.2 | D.122 |
A.15.99 | B.16.0 | C.16.00 |
6.4÷0.8= | 8×2.5= | 0.2+0.78= | 0.99×1.25×8= |
6.6÷0.6= | 1.8×0.3= | 0.1﹣0.02= | 3.8×8.2+3.8×1.8= |
0.65×4= | 0.99÷0.3= | 1﹣0.2÷0.2= | 10x﹣8x= |
A.乘法交换律 | B.乘法结合律 | C.乘法分配律 |
3.5×0.2= | 10÷0.5= | 6×0.25= | 0.63÷0.9= |
0.99÷0.01= | 1.2×4= | 3.9×0.01= | 2.33×1.2= |