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.
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Question: Bianca had 45 coloring books . If she gave away 6 of them , but then bought 20 more , how many would she have total ?

Answer: 59


Question: Last year at Newberg 's airport , 14507 passengers landed on time . Unfortunately , 213 passengers landed late . In all , how many passengers landed in Newberg last year ?

Answer: 14720


Question: Roger had 45 dollars in January . By March he had spent 20 dollars . If he got another 46 dollars from his mom , how much money would he have ?

Answer:
71