Question

Which equations show that the set of whole numbers is not closed under subtraction?

Choose all answers that are correct.

A.
1 – (–2) = 3

B.
1 – 2 = –1

C.
2 – 0 = 2

D.
2 – 4 = –2

Answer 1

I'm pretty sure that's asking, which of the output numbers are whole numbers.

Answer 2

Whole numbers=>0

Answer 3

Negatives are not whole numbers.

Answer 4

Is the answers a and c

Answer 5

I believe so

Answer 6

thanks