To find , start from 0, move left 4 units

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Presentation transcript:

To find -4 + 2, start from 0, move left 4 units To find -4 + 2, start from 0, move left 4 units. Then move right 2 units. You will end up at -2. To find -4 + (-2), start from 0, move left 4 units. Then move left 2 units. You will end up at -6.

To find -4 + 2, start from 0, move left 4 units To find -4 + 2, start from 0, move left 4 units. Then move right 2 units. You will end up at -2. To find -4 + (-2), start from 0, move left 4 units. Then move left 2 units. You will end up at -6.

Mathletes Fab Five Show addition on the number line. Find the sum. 2 + (-3) Show addition using the counters. Find the sum. –3 + 4 9 + (-7) -7 + 5 -2 + 3 + (-4) + (-1) -1 1 2 -2 -4

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