You are given a math word problem and you are supposed to apply a single mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report final the numerical answer.

Q: A carpenter bought a piece of wood that was 8.9 centimeters long . Then he sawed 2.3 centimeters off the end . How long is the piece of wood now ?

A: 6.6
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Q: John needs $ 2.5 . He has $ 0.75 . How much more money does he need ?

A: 1.75
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Q: Joan went to 4 football games this year . She went to 9 football games last year . How many football games did Joan go to in all ?

A:
13
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