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.

[Q]: Omar and Karen made egg rolls to share at the school potluck . Omar rolled 219 egg rolls . Karen rolled 229 egg rolls . What is the total number of egg rolls Omar and Karen rolled ?
[A]: 448

[Q]: Tom has 30 violet balloons , he gave Fred 16 of the balloons . How many violet balloons does he now have ?
[A]: 14

[Q]: Melissa has 70 oranges . John takes 19 away . How many oranges will Melissa have ?
[A]:
51