Grade 8 Math Order of Operations

Grade 8 Math Order of Operations

8th Grade

15 Qs

quiz-placeholder

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Grade 8 Math Order of Operations

Grade 8 Math Order of Operations

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

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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