Question

Which expression would be easier to simplify if you used the commutative property to change the order of the numbers?

A. 20 + 17 + (-1/2) + (-5/2)
B. 2/3 + (-1/3) + 5
C. (-17) + 45 + (-33)
D. 20 + 80 + (-32)

Answer 1

c. is the right answer :) hope this helps

Answer 2

9514 1404 393

Answer:

C. (-17) + 45 + (-33)

Explanation:

The order seems appropriate for A, B, D:

A. = 37 -6/2 = 34

B. = 1/3 +5 = 5 1/3

D. = 100 -32 = 68

I would rearrange the numbers in C to put the negative numbers together:

C. = (-17) +(-33) +45 = -50 +45 = -5