45 multiplied by 21 is 945
45 × 21 = 945
Explanation: Multiplication is repeated addition. So, 45 × 21 means adding 45, 21 times:
45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 + 45 = 945
Word Problem Style
If you have 21 boxes and each box contains 45 apples, then the total number of apples is 945.
Quick Facts
- 45 is called the multiplicand.
- 21 is called the multiplier.
- The result, 945, is called the product.
Multiplication Table for 45
| 45 × N | Result |
|---|---|
| 45 × 1 | 45 |
| 45 × 2 | 90 |
| 45 × 3 | 135 |
| 45 × 4 | 180 |
| 45 × 5 | 225 |
| 45 × 6 | 270 |
| 45 × 7 | 315 |
| 45 × 8 | 360 |
| 45 × 9 | 405 |
| 45 × 10 | 450 |
| 45 × 11 | 495 |
| 45 × 12 | 540 |