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.

Question

Xiomara Hatfield

16 November, 08:33

+3

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Jesse Faulkner · Answer 1

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