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The Percent Calculator Games
Play the percent game
Answers are checked to two decimal places. Press Next question for a new question after each answer.
Example: 25% of 80 is 20, 10% of 150 is 15 and 50% of 96 is 48 — the game uses the same math.
Behind the numbers
How to find a percentage
To find a percentage of a number, multiply the percent by the whole number and divide by 100. That is the whole game: every question is the same formula with different numbers, so once the method clicks, the answers come fast.
Worked example: 25% of 80 = 25 × 80 ÷ 100 = 2,000 ÷ 100 = 20. Another: 10% of 150 = 10 × 150 ÷ 100 = 15.
Shortcuts worth learning
Find 10% first and build from it: 30% is three times 10%, and 15% is 10% plus half of 10%.
A few comparisons
Example questions and answers
| Question | Working | Answer |
|---|---|---|
| 25% of 80 | 25 × 80 ÷ 100 | 20 |
| 10% of 150 | 10 × 150 ÷ 100 | 15 |
| 50% of 96 | 50 × 96 ÷ 100 | 48 |
| 75% of 120 | 75 × 120 ÷ 100 | 90 |
| 20% of 45 | 20 × 45 ÷ 100 | 9 |
Play smarter, not longer.
Start on Easy and learn the 10%, 25% and 50% shortcuts first — most Medium and Hard questions are just combinations of those.
Work out 10% of the number in your head, then scale it: 30% is three lots of 10%, and 5% is half of 10%.
When an answer is wrong, read the correct working in the result card before moving on — repeating the same mistake is how streaks end.
Use “Add your own percent” to practise the exact percent your class is working on, such as a 33% sale or a 15% tip.
Good to know
Your percent game questions, answered.
How does the percent calculator game work?
Each round shows a question such as “What is 25% of 80?” Type your answer and press Check answer. A correct answer adds to your score and your streak; a wrong answer shows the right answer, resets your streak to zero, and you press Next question for a new one. Your score, streak and best streak are shown on the right.
How do I find a percentage of a number?
Multiply the percent by the whole number, then divide by 100: part = percent × whole ÷ 100. For example, 25% of 80 = 25 × 80 ÷ 100 = 2,000 ÷ 100 = 20. The same formula is used for every question in the game.
What if I want to practise a percent that is not in the list?
Choose “Add your own percent…” in the percent list and type your percent into the “Your percent (%)” field that appears. The game then asks questions with your percent — for example, typing 33 makes the next question “What is 33% of 90?” If the field is empty, the game asks you to enter your percent first.
What counts as a correct answer?
An answer within 0.01 of the exact value counts as correct, so decimals are fine. For example, 15% of 30 is 4.5, and both 4.5 and 4.50 are accepted. Whole-number answers such as 25% of 80 = 20 are exact.