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 20 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.Dilan worked out 16 + 3 × 7 = 133. What is the right answer?

2.Priya worked out 12 − 3 × 2 = 18. What is the right answer?

3.Aisha worked out 2 + 9 × 4 = 44. What is the right answer?

4.Noor worked out 8 + 8 × 6 = 96. What is the right answer?

5.Ama worked out 7 + 3 × 9 = 90. What is the right answer?

6.Aisha worked out 4 + 9 × 3 = 39. What is the right answer?

7.Tomas worked out 19 + 3 × 5 = 110. What is the right answer?

8.Noor worked out 5 + 9 × 8 = 112. What is the right answer?

LessonPrint · 5.OA.A.1 · Set 20 · free to copy for classroom use

Answer key — Find the Mistake — Order of Operations

Set 20. Prints on its own sheet.

1.37
2.6
3.38
4.56
5.34
6.31
7.34
8.77

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