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Find the Mistake — Order of Operations is a free printable Grade 5 math worksheet on spotting an answer worked strictly left to right, aligned to Common Core standard 5.OA.A.1. It prints 8 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 10 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Find the Mistake — Order of Operations

5.OA.A.1

NameDate

Find the mistake and write the right answer.

1.Jonah worked out 17 + 6 × 5 = 115. What is the right answer?
2.Zara worked out 15 + 6 × 4 = 84. What is the right answer?
3.Suki worked out 4 + 3 × 7 = 49. What is the right answer?
4.Luis worked out 14 − 3 × 4 = 44. What is the right answer?
5.Kofi worked out 19 + 4 × 6 = 138. What is the right answer?
6.Ama worked out 20 − 9 × 2 = 22. What is the right answer?
7.Dilan worked out 11 + 5 × 7 = 112. What is the right answer?
8.Mei worked out 19 + 8 × 8 = 216. What is the right answer?

LessonPrint · 5.OA.A.1 · Set 10 · free to copy for classroom use

Answer key — Find the Mistake — Order of Operations

Set 10. Prints on its own sheet.

  1. 1.47
  2. 2.39
  3. 3.25
  4. 4.2
  5. 5.43
  6. 6.2
  7. 7.46
  8. 8.83

Last reviewed 2026-09-05. Aligned to 5.OA.A.1 of the Common Core State Standards for Mathematics.