instruction:
You are given a math word problem and you are supposed to apply a single mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report final the numerical answer.
question:
Connie had some marbles . She gave 183 to Juan . Now she has 593 marbles left . How many did she have to start with ?
answer:
776


question:
Mike has 87 baseball cards . Sam bought 13 of Mike 's baseball cards . How many baseball cards does Mike have now ?
answer:
74


question:
Arthur removes 4 pencils from a jar . There were originally 87 pencils in the jar . How many pencils are left in the jar ?
answer:

83