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: Joan found 70 seashells on the beach . she gave Sam some of her seashells . She has 27 seashell . How many seashells did she give to Sam ?

Answer: 43


Question: Connie had some marbles . She gave 73 to Juan . Now she has 70 marbles left . How many did she have to start with ?

Answer: 143


Question: Kelly had 56 apples . How many more apples does Kelly need to pick to have 105 apples altogether ?

Answer:
49