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Earn +20 ptsQ: What does -18 plus 21 equal?
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Continue Learning about Math & Arithmetic
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
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