Question

WILL MEDAL!!!!!!!!

Which equations show that the set of whole numbers is closed under addition?

Choose ALL answers that are correct.

A.
0 + (–1) = –1

B.
1 + 1 = 2

C.
2 + 0 = 2

D.
2 + (–1) = 1

Answer 1

@ageta

Answer 2

@blahhedup101

Answer 3

it is D:)

Answer 4

thx

Answer 5

but any more?

Answer 6

once again it says "Chose all correct answers"

Answer 7

@Hoslos

Answer 8

i'm just putin' in as many names as i can XD

Answer 9

can you help me hos?

Answer 10

I would say all of them are correct.
Closure of while number to addition, means that if you add whole numbers you should get a new whole number and that is what happened in all of those cases, therefore it is proven that whole numbers are close to addition.

Answer 11

wow thanks a bunch!