Question

Lance wants to find the total length of 3 boards. He uses the expression 3 1/2+(2+4 1/2). How can Lance rewrite the expression using both the Associative and Cummutative property of addition?

Answer 1

Lance can rewrite it by doing commutative properly this way a + b = b+ a
Or associative property this way
(A+b)+c=a+(b+c)

Answer 2

10 because addition doesn't matter how you add it