Grade 5 find the mistake
This Grade 5 worksheet practices grade 5 find the mistake (Common Core 5.NBT.A.3, 5.NBT.A.3b; Alberta Number 1; Alberta Number 4).
8 Grade 5 problems with a student's answer to check. Some are right and some are wrong. With an answer key.
8 problems · answer key on the last page · each version has different numbers · Print from the browser
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On this sheet
- Emma says 28 − 6 × 3 = 66. Find Emma's mistake. What is the correct value of 28 − 6 × 3? — answer: 10
- Dev says 20 − 2 × 6 = 108. Find Dev's mistake. What is the correct value of 20 − 2 × 6? — answer: 8
- Maya writes 0.454 as a fraction in lowest terms and gets 454/1000. Is Maya right? — answer: No: the answer is 227/500
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
- How many problems are on this worksheet?
- 8 on one page, with the answer key on the last page.
- What grade and standard is it for?
- Grade 5. Common Core: 5.NBT.A.3, 5.NBT.A.3b. Alberta: Number 1, Number 4.
- Can I print more than one version?
- Yes. Every version has different numbers and its own answer key. Use “Make another version” for a new one; the same version always prints the same.
- 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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