11．列竖式计算．（带※号的要验算）
| 240÷5= | 369÷6= | 708÷7= |
| 924÷3= | ※413÷7= | ※753÷5= |
10．口算
0 159568 159576 159582 159586 159592 159594 159598 159604 159606 159612 159618 159622 159624 159628 159634 159636 159642 159646 159648 159652 159654 159658 159660 159662 159663 159664 159666 159667 159668 159670 159672 159676 159678 159682 159684 159688 159694 159696 159702 159706 159708 159712 159718 159724 159726 159732 159736 159738 159744 159748 159754 159762 199269
| 560÷7= | 79-18= | 3000÷6= | 0÷39×39= |
| 250×0+4= | 940-700= | 3×20= | 640÷8= |
| 4900÷7= | 40×13= | 80-（40×2）= | 20×9-20= |