You are given a math word problem and you are supposed to apply a single mathematical operator 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.
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Question: ned gave away 13 of his video games to a friend . now ned has 6 games . how many games did ned have before he gave the games away ?

Answer: 19

Question: jason had 27 peaches and 17 pears left at his roadside fruit stand . he went to the orchard and picked more peaches to stock up the stand . there are now 90 peaches at the stand how many did he pick ?

Answer: 63

Question: maria was placing her spare change into stacks . each stack had 3 coins . if she had 5 stacks how many coins did she have ?

Answer:
15