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IgorLugansk [536]
2 years ago
10

Aimee must add together the following numbers:3.50 + 4.00 + (−1.25) + (−7.50) + 5.25 + 2.00 As her first step, Aimee writes:(3.5

0 + (–7.50)) + (–1.25 + 5.25) + (4.00 + 2.00)Which is the best explanation of what Aimee did in this step?
A.Aimee used the Associative and Commutative Properties to put opposite numbers together.
B.Aimee used the Identity Property to put numbers with the same values after the decimal point together.
C.Aimee used the Associative and Commutative Properties to put numbers that are easy to add next to each other.
D.Aimee used the Inverse Property to pair each positive decimal with a negative decimal so that they will cancel out.
Mathematics
2 answers:
Verdich [7]2 years ago
8 0

Your answer would be, Letter Choice, (C.), Aimee used the Associative and Commutative properties to put numbers that are easy to add next to each other.

Commutative of Addition: the order in which numbers are added, does not change the sum : Example: 7a − 2b + 2., −2b + 7a + 2

Associative Property of Addition: the way in which numbers are grouped when : added, does not change the sum: Example: (a + b) + c = a + (b + c) 

Hope that helps!!!! Answer: Letter Choice, (C) : )

alina1380 [7]2 years ago
5 0

The answer is C. The associative property states that (a + b) + c = a + (b + c) and the commutative property states that a + b = b + a. She used these two properties to move around and group the numbers in a way that will be easy to add together.

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