| 填一填. ________÷48=52 | ________÷34=48…26 | ________÷29=51…14 |
| 123÷________=3 | 443÷________=7…37 | 392÷________=8…8. |
口算.
| 1.8×0.5= | 49×0.2= | 10÷2.5= | 0.83÷0.1= | 2.4-0.8= |
| 0.44÷2.2= | 0.6×0.5= | 0.4+0.15= | 1.25×8= | 0.56÷8= |
| 12.5×18.5×0.8= | 5.38+0.45+1.55= | 0.42÷0.7÷0.6= | 0.74×0.6+0.74×0.4= |