Here is an addition sentence. (6 + 7) + 8 = 21 Choose an equivalent addition sentence that shows the associative property of add ition.
2 answers:
Answer:
6 + (7+ 8) = 21
Step-by-step explanation:
According to the associative property of addition, the sum of three or more numbers remains the same regardless of how the numbers are grouped.
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The Associative property of addition is where you group the numbers differently with parenthesis. That equation could be written as (8+6) + 7 = 21 or (7+8) + 6 = 21
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