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.

[Q]: Tim had 7 quarters and 9 nickels in his bank . His dad gave him 3 nickels and 5 pennies . How many nickels does Tim have now ?
[A]: 12


[Q]: Ronald has 13 blocks . Martha has with 4 blocks . Martha finds another 80 . How many blocks does Martha end with ?
[A]: 84


[Q]: Mary had 8 potatoes in the garden . The rabbits ate 3 of the potatoes . How many potatoes does Mary now have ?
[A]:
5