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Adding and subtracting integers worksheets

Twenty problems adding and subtracting positive and negative numbers, such as (−9) + (−13), in three versions with answer keys.

Integers: add and subtract integers

NameDate

Solve.

  1. 13 − 18 =
  2. 3 + 16 =
  3. (−12) − (−9) =
  4. 5 + 8 =
  5. 8 + 9 =
  6. 3 + (−1) =
  7. 14 + 15 =
  8. (−12) − 11 =
  9. 2 − 9 =
  10. (−4) + 2 =
  11. 1 + (−12) =
  12. 17 + 14 =
  13. 18 + 8 =
  14. 10 + (−16) =
  15. (−2) + (−11) =
  16. (−3) + 1 =
  17. 2 − (−10) =
  18. (−9) + (−5) =
  19. 12 + (−2) =
  20. 20 + 13 =
Sheet AFree at teach.peabody.kids

Integers: add and subtract integers

NameDate

Solve.

  1. (−13) + 11 =
  2. (−1) + (−2) =
  3. 7 − 7 =
  4. (−3) + (−20) =
  5. 19 − 2 =
  6. (−19) + (−16) =
  7. (−10) + 17 =
  8. 6 + 2 =
  9. (−17) + 10 =
  10. (−18) − 18 =
  11. 6 + 5 =
  12. 20 − 9 =
  13. 0 − 18 =
  14. 12 + 8 =
  15. (−16) − (−13) =
  16. 7 + 0 =
  17. 14 − (−10) =
  18. (−17) − 2 =
  19. 18 + 7 =
  20. 15 − (−8) =
Sheet BFree at teach.peabody.kids

Integers: add and subtract integers

NameDate

Solve.

  1. 8 + 20 =
  2. (−17) − 18 =
  3. 4 − (−11) =
  4. (−15) − 5 =
  5. 4 + (−4) =
  6. (−2) + (−4) =
  7. 10 + 19 =
  8. 16 + 15 =
  9. (−19) + (−4) =
  10. (−1) + (−17) =
  11. 13 + 0 =
  12. (−5) − 7 =
  13. (−8) − (−8) =
  14. (−3) − 13 =
  15. 8 + 8 =
  16. 5 − (−11) =
  17. (−13) − 6 =
  18. (−18) − (−10) =
  19. (−6) + 6 =
  20. 20 − (−7) =
Sheet CFree at teach.peabody.kids

Answer key

Sheet A

  1. −5
  2. 19
  3. −3
  4. 13
  5. 17
  6. 2
  7. 29
  8. −23
  9. −7
  10. −2
  11. −11
  12. 31
  13. 26
  14. −6
  15. −13
  16. −2
  17. 12
  18. −14
  19. 10
  20. 33

Sheet B

  1. −2
  2. −3
  3. 0
  4. −23
  5. 17
  6. −35
  7. 7
  8. 8
  9. −7
  10. −36
  11. 11
  12. 11
  13. −18
  14. 20
  15. −3
  16. 7
  17. 24
  18. −19
  19. 25
  20. 23

Sheet C

  1. 28
  2. −35
  3. 15
  4. −20
  5. 0
  6. −6
  7. 29
  8. 31
  9. −23
  10. −18
  11. 13
  12. −12
  13. 0
  14. −16
  15. 16
  16. 16
  17. −19
  18. −8
  19. 0
  20. 27
Answer keyFree at teach.peabody.kids

Integers: 20 problems a sheet, 3 versions that do not repeat each other where the numbers allow.

How to use it

  1. Look at the sheet: it is a real, printable sheet. Switch between Sheet A, B and C, or press New numbers (N) for a fresh set.
  2. Change how many problems, how many versions, and whether the key prints. Settings stay in this browser; Share copies a link that rebuilds the same sheets.
  3. Press Print sheet A and key, or Print all. The answer key prints on its own page, so you can keep it back.

Ideas for class

  • Use the number line on this site to show each of the first problems as jumps left and right.
  • Teach students to rewrite every subtraction as an addition of the opposite before solving.
  • Ask for a prediction: will the answer be positive or negative? A quick check catches many sign errors.

Related

Questions

Why are negative numbers in parentheses?

It separates the sign of the number from the sign of the operation, so that (−9) + (−13) is clear to read. Textbooks vary, and the parentheses can be dropped by hand if your class does so.

Is there a sheet for multiplying and dividing integers?

Yes, in the maker: choose Integers and then Multiply and divide integers. Absolute value has its own level as well.

Are the answer keys checked?

Each answer is worked out by the code that wrote the problem, and our tests recompute every answer a second way and compare. Please still look over the key before you grade a class set.

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What this worksheet covers

Integers include the negative numbers, and this sheet covers adding and subtracting them. Each problem has two numbers between −20 and 20, with negative ones in parentheses so the signs are clear, and the sign between them is plus or minus. Subtracting a negative, as in 5 − (−3), is the case that most students find hardest, and the sheet includes it often.

Who it is for

Seventh grade, with an introduction in sixth. Common Core 7.NS.A.1 asks students to add and subtract rational numbers, representing the operations on a number line. Students should be comfortable with negative numbers on a number line first.

Adding and subtracting positive and negative numbers · grades 6 and 7

A worked example

5 − (−3). Subtracting a negative is the same as adding the opposite, so this is 5 + 3 = 8. On a number line, the difference between 5 and −3 is 8 units. Ask students why it is not 2.

Mistakes to watch for

  • Treating a subtraction sign as a negative sign, so (−4) − 3 becomes 7 instead of −7. Say it as negative four take away three.
  • Losing the sign when both numbers are negative. Two negatives added always make a more negative number.

Make it your own

This sheet is one setting of the math worksheet generator. Open it there to change the skill, the range of numbers or the heading, or to mix several skills on one sheet.