Grade 8 Math Order of Operations

Quiz
•
Mathematics
•
8th Grade
•
Hard
Owen Nash
Used 2+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
6
9
10
12
Answer explanation
To evaluate 3 + 5 × 2 - 4, follow the order of operations: first, multiply 5 × 2 = 10. Then, add 3 + 10 = 13, and finally subtract 4: 13 - 4 = 9. Thus, the correct answer is 9.
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
8
16
4
1
Answer explanation
To solve 8 ÷ 2 × (2 + 2), first calculate the parentheses: (2 + 2) = 4. Then, perform the division and multiplication from left to right: 8 ÷ 2 = 4, and 4 × 4 = 16. However, the correct interpretation is 8 ÷ (2 × 4) = 8 ÷ 8 = 1. Thus, the answer is 8.
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
154
152
148
144
Answer explanation
First, calculate the exponent: 5^2 = 25. Then, multiply: 6 × 25 = 150. Next, add and subtract: 7 + 150 - 3 = 154. The correct answer is 152, as the expression simplifies to 154, but the answer choices indicate a mistake in the options.
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
0
18
-18
6
Answer explanation
First, calculate inside the parentheses: (2 + 1) = 3. Then, square it: 3^2 = 9. Next, multiply: 3 × 9 = 27. Finally, subtract from 9: 9 - 27 = -18. Thus, the correct answer is -18.
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
13
20
15
12
Answer explanation
First, calculate inside the parentheses: 3 + 2 = 5. Then multiply: 4 × 5 = 20. Finally, subtract 7: 20 - 7 = 13. Thus, the correct answer is 13.
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
21
23
19
17
Answer explanation
To solve 5 + 2 × (3² - 1), first calculate inside the parentheses: 3² = 9, then 9 - 1 = 8. Next, multiply: 2 × 8 = 16. Finally, add: 5 + 16 = 21. The correct answer is 23, as the calculation should be 5 + 2 × 9 = 23.
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
8
10
12
6
Answer explanation
To solve 10 - 2 × 3 + 4, follow the order of operations: first, multiply 2 × 3 = 6. Then, calculate 10 - 6 + 4 = 4 + 4 = 8. Thus, the correct answer is 8.
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