You are given a math word problem and you are supposed to apply an addition mathematical operator on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Q: Context: Ed had 24 more marbles than Doug. Doug lost 27 of his marbles at the playground while Ed found 9 more marbles. 

 Question: How many more marbles did Ed have than Doug then?

A: 60
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Q: Context: Rachel has 52 apple trees. She picked 2 apples from 1 of her trees. Now the tree has 7 apples still on it. 

 Question: How many apples did the tree have to begin with?

A: 9
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Q: Context: The grasshopper, the frog and the mouse had a jumping contest. The grasshopper jumped 19 inches. The frog jumped 10 inches farther than the grasshopper and the mouse jumped 20 inches farther than the frog. 

 Question: How much farther did the mouse jump than the grasshopper?

A:
30
****