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.

[EX Q]: Ernest starts with 17 crayons . Jennifer takes 6 away . How many crayons does Ernest end with ?
[EX A]: 11

[EX Q]: Sandy had 36 pennies and 31 nickels in her bank . Her dad borrowed 20 nickels from Sandy . How many nickels does she have now ?
[EX A]: 11

[EX Q]: John needs $ 2.5 . He has $ 0.75 . How much more money does he need ?
[EX A]:
1.75