Whodunnit? Order of Operations
Authored by Shelley Daniels
Mathematics
8th - 10th Grade
CCSS covered
Used 100+ times
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About
This quiz focuses on the order of operations (PEMDAS/BODMAS) in mathematics, specifically targeting middle school students at the 7th-8th grade level. The core concept being assessed is students' ability to correctly sequence mathematical operations when evaluating complex numerical expressions containing parentheses, exponents, multiplication, division, addition, and subtraction. Students must demonstrate procedural fluency with integer operations, including working with negative numbers, and apply the hierarchical rules of mathematical operations systematically. The quiz uses a mystery game format where each correctly solved expression eliminates potential suspects, locations, and methods, requiring students to track their answers methodically to solve the final puzzle. This engaging approach transforms routine order of operations practice into an interactive problem-solving experience that maintains student interest while reinforcing fundamental algebraic thinking skills. Created by Shelley Daniels, a Mathematics teacher in the US who teaches grades 8 and 10. This quiz serves as an excellent formative assessment tool that can be implemented as a review activity, homework assignment, or engaging warm-up to reinforce order of operations skills. The mystery format makes it particularly effective for maintaining student engagement during what could otherwise be repetitive computational practice. Teachers can use this as a culminating activity after teaching PEMDAS rules, or as a diagnostic tool to identify students who need additional support with multi-step expressions. The quiz aligns with Common Core State Standards 7.EE.1 and 8.EE.1, which require students to apply properties of operations as strategies to add, subtract, factor, and expand linear expressions with rational coefficients, and to work with expressions involving integer exponents.
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13 questions
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1.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
READ CAREFULLY...Six contestants on a reality TV show were stunned to find their lowest scoring colleague was “injured.” They must figure out the crime before the bell rings. The question is Whodunnit? And how… The Player, Last Known Whereabouts and Method that are left unaccounted for -- is the solution.
READY to MOVE ON?
YES
NO
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
READ the directions carefully.Copy this chart in your notes. Be sure to check off the boxes BEFORE selecting your answer for each question. Are you ready to move on?
YES
NO
Tags
CCSS.HSA.CED.A.3
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
6
7
8
9
Tags
CCSS.6.EE.A.1
CCSS.6.NS.B.2
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
-1
13
17.5
20
Tags
CCSS.7.EE.B.3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
-12
-1
1
12
Tags
CCSS.7.NS.A.3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
9
34
72
118
Tags
CCSS.6.EE.A.1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
-18
14
24
30
Tags
CCSS.7.NS.A.3
CCSS.7.EE.B.3
CCSS.7.NS.A.2
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