How to work it out
50% of 100 = 100 × 0.5 = 50
A percent means "per hundred", so 50% is 50/100, or 0.5. Multiply 100 by 0.5 to get 50. A quick mental shortcut: 10% of 100 is 10, so 50% is 10 × 5 = 50.
Related answers
- 100 plus 50% = 150 (an increase of 50)
- 100 minus 50% = 50, the price after a 50% discount
- 50 is 50% of 100, and 100 is 200% of 50
- If 100 is 50% of a number, that number is 200
Other percentages of 100
| Percent | Answer |
|---|---|
| 1% of 100 | 1 |
| 5% of 100 | 5 |
| 10% of 100 | 10 |
| 15% of 100 | 15 |
| 20% of 100 | 20 |
| 25% of 100 | 25 |
| 30% of 100 | 30 |
| 40% of 100 | 40 |
| 60% of 100 | 60 |
| 70% of 100 | 70 |
| 75% of 100 | 75 |
| 80% of 100 | 80 |
| 90% of 100 | 90 |
| 100% of 100 | 100 |
50% of other numbers
| Question | Answer |
|---|---|
| 50% of 20 | 10 |
| 50% of 50 | 25 |
| 50% of 60 | 30 |
| 50% of 80 | 40 |
| 50% of 150 | 75 |
| 50% of 200 | 100 |
| 50% of 250 | 125 |
| 50% of 500 | 250 |
| 50% of 1,000 | 500 |