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7th Grade Order of Operations (PEMDAS) Worksheet — Level 3 — Answers

Answer sheet with worked solutions for the 7th Grade order of operations worksheet.

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Success TutoringWorksheetsAnswer sheet7th Grade · Mathematics · Order of Operations

7th Grade Order of Operations (PEMDAS) Worksheet — Level 3 — Answers

Parentheses, then Exponents, then Multiplication/Division (left to right), then Addition/Subtraction (left to right).

1.21 − 27 ÷ 3

Answer: 12

  1. Divide first: 27 ÷ 3 = 9
  2. 21 − 9 = 12
2.21 − 20 ÷ 4

Answer: 16

  1. Divide first: 20 ÷ 4 = 5
  2. 21 − 5 = 16
3.22 + 2 × (8 − 5)

Answer: 10

  1. Parentheses: 8 − 5 = 3
  2. Exponent: 22 = 4
  3. Multiply: 2 × 3 = 6
  4. 4 + 6 = 10
4.6 × 6 − 8 × 3

Answer: 12

  1. 6 × 6 = 36 and 8 × 3 = 24
  2. 36 − 24 = 12
5.9 × 5 − 9 × 2

Answer: 27

  1. 9 × 5 = 45 and 9 × 2 = 18
  2. 45 − 18 = 27
6.6 × 6 − 6 × 3

Answer: 18

  1. 6 × 6 = 36 and 6 × 3 = 18
  2. 36 − 18 = 18
7.42 + 2 × (4 − 3)

Answer: 18

  1. Parentheses: 4 − 3 = 1
  2. Exponent: 42 = 16
  3. Multiply: 2 × 1 = 2
  4. 16 + 2 = 18
8.22 + 2 × (5 − 4)

Answer: 6

  1. Parentheses: 5 − 4 = 1
  2. Exponent: 22 = 4
  3. Multiply: 2 × 1 = 2
  4. 4 + 2 = 6
9.42 + 3 × (5 − 4)

Answer: 19

  1. Parentheses: 5 − 4 = 1
  2. Exponent: 42 = 16
  3. Multiply: 3 × 1 = 3
  4. 16 + 3 = 19
10.7 × 3 − 6 × 5

Answer: −9

  1. 7 × 3 = 21 and 6 × 5 = 30
  2. 21 − 30 = −9
11.32 + 6 × (3 − 3)

Answer: 9

  1. Parentheses: 3 − 3 = 0
  2. Exponent: 32 = 9
  3. Multiply: 6 × 0 = 0
  4. 9 + 0 = 9
12.(3 + 7)2 ÷ 10

Answer: 10

  1. Parentheses: 3 + 7 = 10
  2. Exponent: 102 = 100
  3. 100 ÷ 10 = 10
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