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.

Q: There are 40 boys and some girls on the playground . There are 117 children altogether . How many girls are on the playground ?

A: 77
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Q: Cade had 87 marbles . He gave 8 to Dylan . How many does he have left ?

A: 79
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Q: Sara picked 45 pears and Sally picked 11 pears from the pear tree . How many pears were picked in total ?

A:
56
****