Consider the following number sentences.
A: 9÷3=3÷9
B: 9×3=3×9
C: 9-3=3-9
D: 9+3=3+9
Part A: Which of the number sentences above demonstrates the commutative property? Explain your reasoning or justify your answer with math. Part
B: Wilson says that all four number sentences are true because order never matters when multiplying, dividing, adding and subtracting. Do you agree with Wilson? Explain your reasoning and justify your answer with math.
Part A: B and D both represent it because 9*3=27 and 3*9=27 and 9+3 and 3+9 both equal 12.
Part B: No because 9-3 does NOT equal 3-9. 6 does not equal -6.