You are given a math word problem and you are supposed to only use subtraction on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Q: Context: Julia played tag with 15 kids on monday, 18 kids on tuesday and 7 kids on wednesday. 

 Question: How many more kids did she play with on monday and tuesday than on wednesday?

A: 26
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Q: Context: During summer break 202958 kids from Lawrence county go to camp and the other 777622 kids stay home. 

 Question: How many more kids stayed home compared to those who went to the camp?

A: 574664
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Q: Context: Paul had 42 pens and 143 books. After selling some books and pens in a garage sale he had 113 books and 19 pens left. 

 Question: How many pens did he sell in the garage sale?

A:
23
****