Mental arithmetic trainer
Practice addition, subtraction or multiplication with an adjustable question set. Review missed answers without treating the score as a measure of intelligence.
Your inputs
Start with the example values, then replace them with your own. For tables, keep the vertical bar separators and use a dot for decimals.
This is a practice aid, not an assessment of intelligence, ability or health. Results vary with the task and conditions.
Tool inputs are processed in your browser and are not submitted by this tool. Existing site analytics and advertising services have their own privacy terms.
Result and workspace
Use the start button to open your result or activity.
How it works
Generate a practice set, answer it, and check each result. No IQ or diagnostic score is produced.
Read the result carefully
Results depend on the values and assumptions shown above. Change one input at a time to see its effect. A blank or unavailable result means the data does not support a calculation; it is not zero.