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: Will was organizing his baseball cards in a binder with 3 on each page . If he had 8 new cards and 10 old cards to put in the binder , how many pages would he use ?

Answer: 6

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: Suzie found 2 worms in the yard and measured them with a ruler . 1 worm was 0.8 inch long . The other worm was 0.1 inch long . How much longer was the longer worm ?

Answer:
0.7