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]: Sara grew 43 pumpkins , but the rabbits ate 23 pumpkins . How many pumpkins does Sara have ?
[A]: 20


[Q]: Lewis then went to see the oranges being harvested . Lewis found out that they harvest 83 sacks per day . How many sacks of oranges will they have after 6 days of harvest ?
[A]: 498


[Q]: Joan has 9 blue balloons but lost 2 of them . How many blue balloons does Joan have now ?
[A]:
7