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Worksheets›Grade 7›Integers & rational numbers›Adding & subtracting integers

Adding & Subtracting Integers Worksheets

Free printable worksheets with answer keys. Pick a level, preview the questions, then open the sheet to swap or delete any single question.

Grade 7CCSS 7.NS.A.1Answer key includedPDF · Print
Open in generatorStart with an easy sheet

Easy: Integers from −12 to 12

  1. 1.3 − (−7) =
  2. 2.4 + (−2) =
  3. 3.12 − (−7) =
  4. 4.−2 − 9 =
  5. 5.−9 + (−7) =
  6. 6.−8 − (−3) =
Preview shows 6 of 12 questions. Every sheet is new; open it to change any question.

Worksheet variations

Subtracting a number is the same as adding its opposite, so 5 − (−3) becomes 5 + 3. Then add using the signs.

Easy−6 + (−11) =Integers from −12 to 12Medium25 + (−7) =Integers from −30 to 30Hard−53 + 2 + (−12) =Three terms, integers to ±99

How to solve it: a worked example

Add or subtract.

  1. Start11 + (−10) =
  2. Add, keeping track of the signs11 + (−10) = 1
  3. Answer1

Common mistakes to watch for

  • Treating 5 − (−3) as 5 − 3.
  • Giving the sum the sign of the first number instead of the number farther from zero.
  • Changing the sign of every number instead of only the one being subtracted.

Tip: tick “Step-by-step answer key” in the generator to print each step for marking.

Related worksheets

Multiplying & dividing integersOperations with rational numbersSolving proportionsPercent increase & decreaseCombining like terms

FAQ

Is every worksheet different?

Yes. Numbers are generated each time, and the answer key is calculated for that sheet. Swap any single question and its answer updates too.

Can I mix adding & subtracting integers with other skills?

Yes. In the generator, add more skills; each gets its own section on the sheet with its own instructions.

Is it free to print?

Yes. Generating and printing from the browser is free with no sign-up. PDF downloads need a free account.