You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators 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: Tessa has 4 apples . Anita gave her 5 more . She needs 10 apples to make a pie . Does she have enough to make a pie ?

Answer: 9


Question: At the arcade , Jerry won 29 tickets playing ' whack a mole ' and 17 tickets playing ' skee ball ' . If he spent 12 of his tickets on a hat , how many tickets does Jerry have left ?

Answer: 34


Question: There were 28 girls and 35 boys on the playground at recess . How many children were there in all ?

Answer:
63