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?
What is the meaning of subtraction of integers?
Let us take another example: -15 – (+4) = -15 – 4 = -(15 + 4) = -19
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Check point
- (-3) – (-3)
- 2 + (-5)
- (-3) + (-4)
- (-14) + 27
- 49 – (-37)
Answer key
- 0
- -3
- -7
- 13
- 86
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