Given a math word problem, answer the following question. You might need to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the question and then only report the final numerical answer.
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Question: belle collected 97 animal stickers . carolyn collected 18 fewer stickers than belle . how many stickers did carolyn collect ?

Answer: 79

Question: dave was making ice using ice trays . he originally had 2 ice cubes . but made 7 more cubes . how many ice cubes did he have totaled ?

Answer: 9

Question: mary 's mom is getting ready for mary 's birthday party . she blew up 6 balloons this morning and 5 balloons this afternoon . how many balloons did she blow up in all ?

Answer:
11