TASK DEFINITION: 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.
PROBLEM: Milford Lake was originally blue because it only had 809 algae plants . Now there are 3263 algae plants , and the lake has turned green . How many more algae plants are in Milford Lake now ?

SOLUTION: 2454

PROBLEM: For homework Nancy had 17 math problems and 15 spelling problems . If she can finish 8 problems in an hour how long will it take her to finish all the problems ?

SOLUTION: 4

PROBLEM: The Litter Patrol picked up 10 glass bottles and 8 aluminum cans on Saturday . How many pieces of litter did they pick up altogether ?

SOLUTION:
18