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Mathematics, 01.07.2021 21:40 jadenbun

PLEASE HELP Fill in the blanks. Then, choose the property of addition you used.
(a)3+_= 3
(Choose one)
(b)4 + 7) + _1 = 4 + (7 + 3)
(Choose one)
(c)9+8 = 8+_
(Choose one)

Fill in the blank and choose a property

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PLEASE HELP Fill in the blanks. Then, choose the property of addition you used.
(a)3+_= 3

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