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When adding a positive integer with a negative integer it is the same thing as subtracting them. For example: 8 + (-6) = is rewritten as 8 - 6 = 2.
To show that an integer is a negative number in a math problem it is surrounded by parentheses. When subtracting negative integers it is the same thing as adding them. For example 10 - (-5) = is rewritten as 10 + 5 = 15.
When adding a negative integer with another negative integer it is the same as adding positive integers. For example: (-30) + (-20) = 30 + 20 = 50. The minus symbol “-” is then placed before the answer so the answer is -50.
Tip: Two like signs become a positive (“-” “-” = “+”) Two unlike signs become a negative (“-” “+” = “-” and “+” “-” = “-”)
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