10 times 28 is 280. In symbols: 10 × 28 = 280, and 28 × 10 = 280 too.
10 × 28 means adding 10 to itself 28 times: that is 28 copies of 10, which add up to 280.
10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, ... (keep going to the 28th multiple). The 28th multiple of 10 is 280.
10 × 28 = 10 × 20 + 10 × 8 = 200 + 80 = 280.
Halve one number and double the other: 10 × 28 = 5 × 56 = 280.
280 ÷ 10 = 28
280 ÷ 28 = 10
280 is even. Prime factorization: 2 × 2 × 2 × 5 × 7.
| Multiplication | Answer |
|---|---|
| 9 × 28 | 252 |
| 11 × 28 | 308 |
| 10 × 27 | 270 |
| 10 × 29 | 290 |
| 10 × 30 | 300 |
| 10 × 26 | 260 |
| 12 × 28 | 336 |
| 8 × 28 | 224 |
Other numbers? Browse the multiplication table, the squares and cubes or the exponent calculator.