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 1 of 25 · the same problems every time you open this link.
1.Ravi worked out 2 + 6 × 4 = 32. What is the right answer?
2.Priya worked out 2 + 3 × 7 = 35. What is the right answer?
3.Noor worked out 16 + 5 × 4 = 84. What is the right answer?
4.Kofi worked out 8 + 5 × 3 = 39. What is the right answer?
5.Noor worked out 4 + 9 × 9 = 117. What is the right answer?
6.Priya worked out 16 + 3 × 4 = 76. What is the right answer?
7.Ravi worked out 4 + 8 × 2 = 24. What is the right answer?
8.Priya worked out 13 + 2 × 7 = 105. What is the right answer?
LessonPrint · 5.OA.A.1 · Set 1 · free to copy for classroom use
Answer key — Find the Mistake — Order of Operations
Set 1. Prints on its own sheet.
1.26
2.23
3.36
4.23
5.85
6.28
7.20
8.27
Questions about Find the Mistake — Order of Operations
What does the Find the Mistake — Order of Operations worksheet cover?
It practices spotting an answer worked strictly left to right — 8 questions for Grade 5, all on Common Core 5.OA.A.1: Work out expressions with parentheses and brackets, in the right order. The instruction to students is “Find the mistake and write the right answer”, and the answer key follows on the next sheet.
Which Common Core standard does Find the Mistake — Order of Operations practice?
CCSS.MATH.CONTENT.5.OA.A.1 — 5.OA.A.1, under Operations & Algebraic Thinking for Grade 5. The published standard reads: “Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols.” The worksheet assesses that standard rather than a paraphrase of it.
What age or grade is this worksheet for?
Find the Mistake — Order of Operations is written for Grade 5, typically ages 10-11. It is one of the sheets on 5.OA.A.1, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.
Does Find the Mistake — Order of Operations come with an answer key?
Yes. All 8 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.
How many different versions of Find the Mistake — Order of Operations can I print?
25 — one per student, and all 25 ask different questions. Set 1 downloads the whole class as a single PDF. Every version is fixed to its own address, so a sheet printed today holds the same problems when you reopen it next week.
Is Find the Mistake — Order of Operations free to print and photocopy?
Yes. Find the Mistake — Order of Operations, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.
More practice for 5.OA.A.1
Work out expressions with parentheses and brackets, in the right order.