Question

HELP PLEASE WILL MEDAL AND FAN
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

@TheEdwardsFamily

Answer 2

comp gives wrong answers ok

Answer 3

@green_1

Answer 4

ok

Answer 5

i think b but im not positive @welshfella will help you

Answer 6

ok, thanks

Answer 7

@imqwerty

Answer 8

@IrishBoy123

Answer 9

@partyqueen

Answer 10

@Compassionate @AlexADB @when.i.said @Photon336 @nthenic_oftime @Voltage