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Integer Addition and Subtraction

Integers can be either positive or negative. Integers which do not have sign before them are positive numbers, like 3, 5, 6, and 8 are all positive integers.

On the other hand, integers like -3, -10, -7, and -15 are all negative integers.

Now we’ll see how to add and subtract integers.

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What are the rules for adding integers?

integer addition and subtraction

What is the meaning of subtraction of integers?

integer addition and subtraction

Let us take another example: -15 – (+4) = -15 – 4 = -(15 + 4) = -19

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Check point

  1. (-3) – (-3)
  2. 2 + (-5)
  3. (-3) + (-4)
  4. (-14) + 27
  5. 49 – (-37)
Answer key
  1. 0
  2. -3
  3. -7
  4. 13
  5. 86

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