20 times 25 is 500. In symbols: 20 × 25 = 500, and 25 × 20 = 500 too.
20 × 25 means adding 20 to itself 25 times: that is 25 copies of 20, which add up to 500.
20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, ... (keep going to the 25th multiple). The 25th multiple of 20 is 500.
20 × 25 = 20 × 20 + 20 × 5 = 400 + 100 = 500.
Halve one number and double the other: 20 × 25 = 10 × 50 = 500.
500 ÷ 20 = 25
500 ÷ 25 = 20
500 is even. Prime factorization: 2 × 2 × 5 × 5 × 5.
| Multiplication | Answer |
|---|---|
| 19 × 25 | 475 |
| 21 × 25 | 525 |
| 20 × 24 | 480 |
| 20 × 26 | 520 |
| 20 × 27 | 540 |
| 20 × 23 | 460 |
| 22 × 25 | 550 |
| 18 × 25 | 450 |
See also: factors of 500.
Other numbers? Browse the multiplication table, the squares and cubes or the exponent calculator.