| 6×517= | 423×5= | 473×4= | 306×7= |
| 65÷5= | 90÷6= | 68÷4= | 738÷3= |
517
| ×6 |
| 3102 |
423×5=2115;
413
| ×5 |
| 2115 |
473×4=1892;
473
| ×4 |
| 1892 |
306×7=2142;
306
| ×7 |
| 2142 |
65÷5=13;
13
5
| 65 |
| 5 |
| 15 |
| 15 |
| 0 |
90÷6=15;
15
6
| 90 |
| 6 |
| 30 |
| 30 |
| 0 |
68÷4=17;
17
4
| 68 |
| 4 |
| 28 |
| 28 |
| 0 |
738÷3=246;
246
3
| 738 |
| 6 |
| 13 |
| 12 |
| 18 |
| 18 |
| 0 |