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.

Q: olivia owned 93 pennies . after she bought an apple she had 56 pennies left . how many did she spend for the apple ?

A: 37
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Q: wendy 's brother had 6 pieces of candy . wendy had 2 boxes with 3 pieces each . how many pieces did they have total ?

A: 12
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Q: adam put 18 items in the shopping cart . after deleting some he had 8 left . how many items did adam delete ?

A:
10
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