Question

which is another way to check the sun of 52 + 23 + 10 + 78?

a) 78 + 10 + 23 + 52
b)78 - 52 - 10 - 23
c) 163- 52 + 23 + 10 + 78
c) 78- 52+ 10 + 23

Answer 1

52 + 23 + 10 + 78 = 78 + 10 + 23 + 52
This is basically the commutative property of addition....a + b = b + a....stating that even if u move the numbers around, if they are the same numbers, the answer will come out the same.