-If you move to the left, you are decreasing, or subtracting, and if you move to the right, you are increasing, or adding. When you have a positive number and you combine it with a negative number of the same amount, it will equal zero and this is called a zero pair.
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Answer:
-If you move to the left, you are decreasing, or subtracting, and if you move to the right, you are increasing, or adding. When you have a positive number and you combine it with a negative number of the same amount, it will equal zero and this is called a zero pair.
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