Math Speed Test

It measures arithmetic fluency: how quickly and accurately you can recall and work out simple number facts. Research on mental arithmetic shows that adults answer many small sums and times-table facts by retrieving them from memory, and work out larger ones step by step, which takes longer [1].

That makes this practice of a learned skill, a bit like a typing speed test. A high score means you are well practiced at arithmetic; it is not a measure of intelligence, and a low score doesn't mean anything is wrong.

• You have 60 seconds. Problems are mixed: adding and subtracting numbers from 2 to 99, multiplying with the times tables from 2 to 12, and dividing back. Every answer is a whole number, never negative.
• Type with the number pad on screen or your keyboard. As soon as the answer is right, the next problem appears; there is nothing to submit. Use ⌫ to fix a typo.
• Every run has new problems. Leaving the page ends the run, because the test is timed.

Your score is the number of problems solved in time. We also show the average time per problem and how many were adding/subtracting versus multiplying/dividing, since the mix is random. Scores rise quickly with practice, so the most useful comparison is with your own earlier runs on the same device.

For a test of holding numbers in mind rather than working with them, try the number memory test.