What is 15 + -10 equal to?

4 Answers

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justaguide | College Teacher | (Level 2) Distinguished Educator

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The result of 15 + -10 = 15 - 10 = 5

The required result is -15

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justaguide's profile pic

justaguide | College Teacher | (Level 2) Distinguished Educator

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Sorry for the typo in the last line. The required result of 15 + -10 = 5

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malkaam | Student, Undergraduate | (Level 1) Valedictorian

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What is 15 + -10 equal to?

15 + - 10 = 5 Answer.

If you're confused because of the signs then all you have to do is keep these pointers in mind:

Addition / Subtraction:

  • 2 same signs result in addition i.e.   - - = + ,   + + = + .
  • 2 different signs result in subtraction i.e.  - + = -,  + - = - , sign of the bigger number is taken.

Division / Multiplication:

  • When signs are different the minus sign is taken i.e. -*+ = -, -*+=-.
  • When signs are same the plus sign is taken i.e. +*+=+, -*-=+.
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acompanioninthetardis | Student, Undergraduate | (Level 1) Valedictorian

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to tihink of it simply, lets say you have 15 dollars, but you owe your friend 10 dollars, how much would you have left? 

5! this is the same thing 15-10= 5