You are given a math word problem and you are supposed to apply an addition mathematical operator on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
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Question: Context: Mary is baking a cake. The recipe calls for 11 cups of sugar and some more cups of flour. She already put in 3 cups of flour. If she still needs to add 6 more cups of flour 

 Question: How many cups of flour did the recipe require?

Answer: 9


Question: Context: For Gwen's birthday she received some dollars. She spent 8 dollars and has 6 dollars left with her. 

 Question: How much money did Gwen receive for her birthday?

Answer: 14


Question: Context: A waiter had 12 customers. After some left he still had 14 customers. Then he got 10 new customers 

 Question: How many customers does he have now?

Answer:
24