Mental math

Build fluency with a little everyday arithmetic. Ten questions, at your own pace.

Choose your practice

Add and subtract numbers up to 20. Multiply and divide with facts from 2 to 10.

How to play

Every answer comes with a worked method. There is no time limit.

Enter your answer, check the method, then choose Next question. All answers are whole numbers, zero or greater. An optional scratchpad is available while you practice.

Active time includes answering, review and drawing, and excludes background tabs. Answers and scratchpad work stay in this tab.