81 multiplied by 90 is 7290
81 × 90 = 7290
Explanation: Multiplication is repeated addition. So, 81 × 90 means adding 81, 90 times:
81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 + 81 = 7290
Word Problem Style
If you have 90 boxes and each box contains 81 apples, then the total number of apples is 7290.
Quick Facts
- 81 is called the multiplicand.
- 90 is called the multiplier.
- The result, 7290, is called the product.
Multiplication Table for 81
| 81 × N | Result |
|---|---|
| 81 × 1 | 81 |
| 81 × 2 | 162 |
| 81 × 3 | 243 |
| 81 × 4 | 324 |
| 81 × 5 | 405 |
| 81 × 6 | 486 |
| 81 × 7 | 567 |
| 81 × 8 | 648 |
| 81 × 9 | 729 |
| 81 × 10 | 810 |
| 81 × 11 | 891 |
| 81 × 12 | 972 |