Mental Math Speed Test
A harder mix for teens and adults: 2-digit sums, differences up to 199, multiplication, division and percentages like 25% of 160. No pen, no calculator.
How long?
Type the answer. Correct answers move on by themselves. Press Enter to skip a wrong one.
Tricks that make mental math faster
- Add in parts. 47 + 38 is 47 + 30 = 77, then 77 + 8 = 85.
- Subtract by counting up. 132 − 87: from 87 to 100 is 13, from 100 to 132 is 32, so 45.
- Split multiplication. 34 × 6 is 30 × 6 + 4 × 6 = 180 + 24 = 204.
- Use easy percentages. 10% moves the decimal point one place, 50% is half and 25% is half of half.
Make it a habit
Take the 1 minute test once a day and watch your last scores rise. The results list the questions you missed, which usually point to one type of question worth practising.
Questions
- Is this test for kids or adults?
- It is built for teens and adults. Children can start with the math speed test or the times tables speed test.
- Are there trick questions?
- No. Every question has a whole-number answer you can work out in your head.