Mathematics

Mathematics, 21.08.2019 05:50, bbyggigi94041

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

Answers: 1

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