4 times 10 is 40. In symbols: 4 × 10 = 40, and 10 × 4 = 40 too.
4 × 10 means adding 4 to itself 10 times: 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = 40.
4, 8, 12, 16, 20, 24, 28, 32, 36, 40. The 10th multiple of 4 is 40.
4 × 10 = 4 × 5 + 4 × 5 = 20 + 20 = 40.
Halve one number and double the other: 4 × 10 = 2 × 20 = 40.
40 ÷ 4 = 10
40 ÷ 10 = 4
40 is even. Prime factorization: 2 × 2 × 2 × 5.
| Multiplication | Answer |
|---|---|
| 3 × 10 | 30 |
| 5 × 10 | 50 |
| 4 × 9 | 36 |
| 4 × 11 | 44 |
| 4 × 12 | 48 |
| 4 × 8 | 32 |
| 6 × 10 | 60 |
| 2 × 10 | 20 |
See also: factors of 40.
Other numbers? Browse the multiplication table, the squares and cubes or the exponent calculator.