The 20 times table
Below are the products of 20 and the numbers 1 to 10. Read the table, learn the trick and practise to make it stick.
| 20 × 1 | = | 20 |
| 20 × 2 | = | 40 |
| 20 × 3 | = | 60 |
| 20 × 4 | = | 80 |
| 20 × 5 | = | 100 |
| 20 × 6 | = | 120 |
| 20 × 7 | = | 140 |
| 20 × 8 | = | 160 |
| 20 × 9 | = | 180 |
| 20 × 10 | = | 200 |
💡 Memory trick
20 × k = 10 × k + (20 − 10) × k. For example, split 20 × 3 into 10 × 3 plus the rest.
Dividing by 20
20 ÷ 20 = 140 ÷ 20 = 260 ÷ 20 = 380 ÷ 20 = 4100 ÷ 20 = 5120 ÷ 20 = 6140 ÷ 20 = 7160 ÷ 20 = 8180 ÷ 20 = 9200 ÷ 20 = 10