Question

The mathematics teacher wrote this procedure on the board.


Step 1: = 75 +8

Step 2: (70 +5) + (5 +3)

Step 3: 70 + (5+5)+3

Step 4: 70 + 10 + 3

Step 5: 80 + 3

Step 6: 83


Which property justifies Step 3?

associative

distributive

commutative

additive identity

Answer 1

Answer:

associative

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