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

Q: Craig walked 0.2 mile from school to David 's house and 0.7 mile from David 's house to his own house . How many miles did Craig walk in all ?

A: 0.9
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Q: There are 12 birds on the fence . 8 more birds land on the fence . How many birds are on the fence ?

A: 20
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Q: A cereal box holds 18 cups of cereal . Each serving is 2 cups . How many servings are in the whole box ?

A:
9
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