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: Mary is baking a cake . The recipe calls for 7 cups of flour and 3 cups of sugar . She already put in 2 cups of flour . How many cups of flour does she need to add ?

Answer: 5


Question: There are 24 bicycles and 14 tricycles in the storage area at Danny 's apartment building . Each bicycle has 2 wheels and each tricycle has 3 wheels . How many wheels are there in all ?

Answer: 90


Question: Connie has 323 marbles . Juan has 175 more marbles than Connie . How many marbles does Juan have ?

Answer:
498