640 multiplied by 51 is 32640
640 × 51 = 32640
Explanation: Multiplication is repeated addition. So, 640 × 51 means adding 640, 51 times:
640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 + 640 = 32640
Word Problem Style
If you have 51 boxes and each box contains 640 apples, then the total number of apples is 32640.
Quick Facts
- 640 is called the multiplicand.
- 51 is called the multiplier.
- The result, 32640, is called the product.
Multiplication Table for 640
| 640 × N | Result |
|---|---|
| 640 × 1 | 640 |
| 640 × 2 | 1280 |
| 640 × 3 | 1920 |
| 640 × 4 | 2560 |
| 640 × 5 | 3200 |
| 640 × 6 | 3840 |
| 640 × 7 | 4480 |
| 640 × 8 | 5120 |
| 640 × 9 | 5760 |
| 640 × 10 | 6400 |
| 640 × 11 | 7040 |
| 640 × 12 | 7680 |