Question

Which equation supports the given conjecture?

The difference of two odd numbers is an even number.

A.
23 – 19 = 4

B.
16 – 10 = 6

C.
17 – 12 = 5

D.
3 + 5 = 8

Answer 1

23 is odd, 19 is odd and 4 is even
16 is not odd, 10 is not odd and 6 is even,
17 is odd, 12 is not odd, 5 is odd
in last here is a sum, not difference