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26 March, 10:26

How you could use a number line to show that - 4 plus 3 and 3 plus (-4) have the same value. Which property of addition states that these sums are equivalent

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  1. 26 March, 10:32
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    Using a number line to show what - 4 + 3 equals:

    Start at the - 4. Move three spaces to the right (+3). You land on - 1.

    Using a number line to show what 3 + (-4) equals:

    Start at the 3. Move four spaces to the left (-4). You land on - 1.

    The commutative property of addition states that a + b = b + a.
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