Today we went over the rules for adding and subtracting integers.
Remember - Integers are all whole numbers and their opposites
(....-3, -2, -1, 0, 1, 2, 3...)
Adding: When the signs are the same - add and keep (the sign)
6 + 4 = 10 - 6 + - 4 = -10
When the signs are different - subtract and keep the sign of the bigger number
10 + (-4) = 6 -10 + 4 = -6
Subtracting: ADD THE OPPOSITE
(Keep Change Change)
Remember - whenever you see two negatives together - it turns into one big +
6 - (-3)
6 + 3
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