20 times 22 is 440. In symbols: 20 × 22 = 440, and 22 × 20 = 440 too.
20 × 22 means adding 20 to itself 22 times: that is 22 copies of 20, which add up to 440.
20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, ... (keep going to the 22th multiple). The 22th multiple of 20 is 440.
20 × 22 = 20 × 20 + 20 × 2 = 400 + 40 = 440.
Halve one number and double the other: 20 × 22 = 10 × 44 = 440.
440 ÷ 20 = 22
440 ÷ 22 = 20
440 is even. Prime factorization: 2 × 2 × 2 × 5 × 11.
| Multiplication | Answer |
|---|---|
| 19 × 22 | 418 |
| 21 × 22 | 462 |
| 20 × 21 | 420 |
| 20 × 23 | 460 |
| 20 × 24 | 480 |
| 20 × 20 | 400 |
| 22 × 22 | 484 |
| 18 × 22 | 396 |
Other numbers? Browse the multiplication table, the squares and cubes or the exponent calculator.