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Adding and subtracting integers worksheet

Grade 7 math, Common Core 7.NS.A.1. 10 problems with an answer key and worked steps. Free to print, and you can make new problems any time.

By the StudyWiz teamUpdated October 23, 2026How we write our pages

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Adding and subtracting integers

Grade 7 math, Common Core 7.NS.A.1

Add or subtract.

  1. 1.
    19 + 6
  2. 2.
    13 − 17
  3. 3.
    3 + 17
  4. 4.
    10 + 7
  5. 5.
    The temperature was −12°F in the morning and rose 11 degrees by noon. What was the temperature at noon?
  6. 6.
    The temperature was −8°F in the morning and rose 7 degrees by noon. What was the temperature at noon?
  7. 7.
    15 + 6 − (−13)
  8. 8.
    The temperature was −11°F in the morning and rose 21 degrees by noon. What was the temperature at noon?
  9. 9.
    11 − (−16)
  10. 10.
    The temperature was −6°F in the morning and rose 11 degrees by noon. What was the temperature at noon?
Free worksheets for grades 6 to 8 from StudyWiz, with answer keys: studywiz.online/worksheets

Answer key: Adding and subtracting integers

Grade 7 math. Each answer has a few worked steps, to help check the method as well as the answer.

  1. 1. 25

  2. 2. −4

  3. 3. 20

  4. 4. 17

  5. 5. −1°F

    −12 + 11 = −1

  6. 6. −1°F

    −8 + 7 = −1

  7. 7. 34

    15 + 6 = 2121 − (−13) = 34

  8. 8. 10°F

    −11 + 21 = 10

  9. 9. 27

    Add the opposite: 11 + 16 = 27

  10. 10. 5°F

    −6 + 11 = 5

The answer key prints on its own page. You’re welcome to print and copy these worksheets for your own kids or class.

About adding and subtracting integers

To add integers with the same sign, add their distances from 0 and keep the sign. With different signs, subtract the smaller distance from the larger and keep the sign of the number farther from 0. To subtract, add the opposite: 5 − (−3) is the same as 5 + 3.

Worked example 1

1 + (−7) − 10
  1. Step 1.1 + (−7) = −6
  2. Step 2.−6 − 10 = −16

Answer: −16

Worked example 2

The temperature was −6°F in the morning and rose 20 degrees by noon. What was the temperature at noon?
  1. Step 1.−6 + 20 = 14

Answer: 14°F

Worked example 3

−3 + (−13) − 14
  1. Step 1.−3 + (−13) = −16
  2. Step 2.−16 − 14 = −30

Answer: −30

Watch out for

  • Subtracting a negative is the same as adding a positive.
  • Picture a number line: adding moves right, subtracting moves left.
  • With different signs, the answer takes the sign of the number farther from 0.

Practice adding and subtracting integers online

On StudyWiz, your kid can practice adding and subtracting integers with 5-question quizzes that are checked as they go, with an explanation for every answer. When a homework problem is the trouble, Wiz gives a hint for each step instead of the answer.

More grade 7 math worksheets

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