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

One paper per student

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

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.Tomas worked out 20 − 7 × 2 = 26. What is the right answer?

2.Freya worked out 13 + 3 × 8 = 128. What is the right answer?

3.Dilan worked out 2 + 3 × 9 = 45. What is the right answer?

4.Elsie worked out 12 + 6 × 4 = 72. What is the right answer?

5.Noor worked out 11 + 2 × 8 = 104. What is the right answer?

6.Kofi worked out 11 + 7 × 2 = 36. What is the right answer?

7.Luis worked out 10 + 6 × 7 = 112. What is the right answer?

8.Ama worked out 18 + 3 × 2 = 42. What is the right answer?

LessonPrint · 5.OA.A.1 · Set 2 · free to copy for classroom use

Answer key — Find the Mistake — Order of Operations

Set 2. Prints on its own sheet.

1.6
2.37
3.29
4.36
5.27
6.25
7.52
8.24

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