30 multiplied by 21 is 630
30 × 21 = 630
Explanation: Multiplication is repeated addition. So, 30 × 21 means adding 30, 21 times:
30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 + 30 = 630
Word Problem Style
If you have 21 boxes and each box contains 30 apples, then the total number of apples is 630.
Quick Facts
- 30 is called the multiplicand.
- 21 is called the multiplier.
- The result, 630, is called the product.
Multiplication Table for 30
| 30 × N | Result |
|---|---|
| 30 × 1 | 30 |
| 30 × 2 | 60 |
| 30 × 3 | 90 |
| 30 × 4 | 120 |
| 30 × 5 | 150 |
| 30 × 6 | 180 |
| 30 × 7 | 210 |
| 30 × 8 | 240 |
| 30 × 9 | 270 |
| 30 × 10 | 300 |
| 30 × 11 | 330 |
| 30 × 12 | 360 |