Free · Grade 3 to Grade 8 · Answer keys
Find the mistake worksheets
Find-the-mistake worksheets for Grades 3 to 8: each problem shows a student's answer, and the student checks it. Some answers are right, so students have to check every one, not just hunt for an error. Answer key on the last page.
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- Grade 3 find the mistake
8 Grade 3 problems with a student's answer to check. Some are right and some are wrong. With an answer key.
Grade 4
- Grade 4 find the mistake
8 Grade 4 problems with a student's answer to check. Some are right and some are wrong. With an answer key.
Grade 5
- Grade 5 find the mistake
8 Grade 5 problems with a student's answer to check. Some are right and some are wrong. With an answer key.
Grade 6
- Grade 6 find the mistake
8 Grade 6 problems with a student's answer to check. Some are right and some are wrong. With an answer key.
Grade 7
- Grade 7 find the mistake
8 Grade 7 problems with a student's answer to check. Some are right and some are wrong. With an answer key.
Grade 8
- Grade 8 find the mistake
8 Grade 8 problems with a student's answer to check. Some are right and some are wrong. With an answer key.
How to teach it
- Work the problem yourself first.
- Compare with the student's answer. If they differ, find the step where it went wrong.
- Say what the mistake was and what the right answer is.
Questions teachers ask
- Why are some of the answers right?
- If every answer were wrong, students would only look for an error. Mixing right and wrong answers makes them check each one, which is the skill that matters.
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