Mark knows that to use a number line to add intergers, you move right to add a positive number and left to add a negative number. He wonders if subtraction follows the same model and moves either left or right depending on what type number (positive or negative.) Is being subtracted.

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2 October, 15:43

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Focker · Answer 1

if subtracting a negative number you move right but if subtracting a positive number you would move left