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What does -18 plus 21 equal?

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Anonymous

∙ 15y ago
Updated: 9/16/2023

I think it's -39

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Wiki User

∙ 15y ago
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What does eighteen plus three equal?

18 + 3 = 21


What is one half plus twelve over eighteen equal?

1/2 + 12/18 = 9/18 + 12/18 = 21/18 = 7/6


Which property does 21 plus 18 equals 18 plus 21?

Commutativity or Abelian property


What is 25 plus 21 plus 19?

25 plus 21 plus 19 is equal to 65.


What does 7 plus 7 plus 7 equal?

21

Related Questions

What does 18 plus 3 equal?

-15.


What does eighteen plus three equal?

18 + 3 = 21


What is one half plus twelve over eighteen equal?

1/2 + 12/18 = 9/18 + 12/18 = 21/18 = 7/6


Which property does 21 plus 18 equals 18 plus 21?

Commutativity or Abelian property


What 21 plus 21 equal?

21 + 21 = 42.


What does -21 divided by 18 equal?

-39


What is 18 plus 3?

-21


What is 25 plus 21 plus 19?

25 plus 21 plus 19 is equal to 65.


What does --21 equal?

18


What does 18 plus 18 equal?

36


What is 16 plus 16 plus 16 plus 17 plus 18 plus 18 plus 18 plus 19 plus 19 plus 20 plus 20 plus 20 plus 21?

16 + 16 + 16 + 17 + 18 + 18 + 18 + 19 + 19 + 20 + 20 + 20 + 21 = 238


What does - 12 plus - 9 equal to?

21

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