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

Q: The school cafeteria ordered 8 red apples and 43 green apples for students lunches . But , if only 42 students wanted fruit , how many extra did the cafeteria end up with ?

A: 9
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Q: A teacher had 6 worksheets to grade . If she graded 4 , but then another 18 were turned in , how many worksheets would she have to grade ?

A: 20
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Q: A restaurant served 5 cakes during lunch and 6 during dinner today . The restaurant served 3 cakes yesterday . How many cakes were served in total ?

A:
14
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