Question Video: Solving Word Problems Involving Addition and Subtraction of Rational Numbers | Nagwa Question Video: Solving Word Problems Involving Addition and Subtraction of Rational Numbers | Nagwa

# Question Video: Solving Word Problems Involving Addition and Subtraction of Rational Numbers

Noah’s golf score was 4 strokes less than Daniel’s golf score, which was 4 strokes more than William’s. If William’s score relative to par was +9, what was Noah’s golf score?

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### Video Transcript

Noah’s golf score was four strokes less than Daniel’s golf score, which was four strokes more than William’s. If William’s score relative to par was plus nine, what was Noah’s golf score?

In this question, we’re told about three golfers, Noah, Daniel, and William. We know that William’s score was plus nine. We’re told that Daniel’s score was four strokes more than William’s. Adding four strokes onto plus nine gives us plus 13 or positive 13. We’re also told that Noah’s score was four strokes less than Daniel’s. Taking four away from plus 13 gives us plus nine. This means that Noah’s golf score relative to par was plus nine or positive nine.

When reading the question, we might’ve noticed that positive four and negative four are the opposite or inverse of each other. This means that they would cancel out. And Noah’s score would be the same as William’s. Either way, we get a final answer of plus nine.

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