直接写得数
| 30÷3= | 400÷2= | 20×60= | 15×20= |
| 33-18= | 45+27= | 0÷5= | 42×2= |
| 6+0.6= | 5.3-1.7= | 0.7+4.9= | 5.3+1.7= |
化简比
| 7.5:1.5 | ||
| 1.2m:50cm | 1.23:0.15 | |
计算下面各题,能简算的要简算.
| 5- | |||
直接写得数
| 30÷3= | 400÷2= | 20×60= | 15×20= |
| 33-18= | 45+27= | 0÷5= | 42×2= |
| 6+0.6= | 5.3-1.7= | 0.7+4.9= | 5.3+1.7= |
化简比
| 7.5:1.5 | ||
| 1.2m:50cm | 1.23:0.15 | |
计算下面各题,能简算的要简算.
| 5- | |||