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: Marcus has 210 baseball cards . He has 58 more than Carter . How many baseball cards does Carter have ?

A: 152
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Q: Jovana had 5 pounds of shells in her bucket . She added some shells and now has 28 pounds of shells . How many pounds did she add ?

A: 23
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Q: There were 7 friends playing a video game online when 2 more players joined the game . If each player had 7 lives , how many lives did they have total ?

A:
63
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