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First locate -3.

Then to add 7 you move 7 places to the right (and you will arrive at 4):

_____________________________________________________

_____________________ move right 7__________________

______________ →→→→→→→→→→→→ __________

_____________ ↑ _________________________ ↓ __________

___---+---+---+---+---+---|---+---+---+---+---+--- ___

____ -5 _____ -3 __________0______________4___ 5 _____

_____________________________________________________

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8y ago
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Q: How do you get negative 3 plus 7 using a number line?
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