Estimate the size
A quick estimate helps you catch digit slips before submitting.
60-second speed test
Mental Math Test
Test how many whole-number calculations you can solve accurately in one minute. The score is transparent, and the result is a practice baseline—not a measure of intelligence.
- Free and no signup
- Clear one-point scoring
- Keyboard and mobile keypad
Mixed arithmetic · 60 seconds
Mental Math Test
60 seconds. Find your pace.
18 + 7 = ?
No signup · Sound off · Keyboard ready
How this game works
Focused practice, useful feedback
This mixed test moves through addition, subtraction, multiplication, and exact division. The question generator balances operations and prevents long runs of the same symbol.
Standard difficulty uses mostly Tier 3 questions with a smaller share of Tier 2 and Tier 4. That creates a brisk test for teenagers and adults without introducing fractions, decimals, or negative answers.
Calculate with less friction
Split by place value
Break the second number into tens and ones to reduce working-memory load.
Use inverse checks
Multiplication facts provide a fast check for exact division.
Useful answers
Is this an IQ test?
No. It is a short arithmetic-fluency game and does not measure intelligence.
What is a good score?
Your useful benchmark is your own previous result. Question difficulty increases during a game.
Can I take it without a timer?
Yes. Choose Untimed 10 on the Practice page.