TASK DEFINITION: You are given a math word problem and you are supposed to apply an addition mathematical operator on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
PROBLEM: Context: 13 campers went rowing and 59 campers went hiking in the morning. 21 campers went rowing in the afternoon.

Question: How many campers went rowing in all?

SOLUTION: 34

PROBLEM: Context: Bobby ate 28 pieces of candy. Then he ate 42 more. He also ate 63 pieces of chocolate.

Question: How many pieces of candy did Bobby eat?

SOLUTION: 70

PROBLEM: Context: Baker made 121 cakes. He sold 105 of them and bought 170 new cakes.

Question: How many cakes does baker still have?

SOLUTION:
186