TASK DEFINITION: You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication, or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
PROBLEM: omar loves to play checkers . he played 37 games yesterday . he played 49 games today . omar lost 18 games . how many games did he win ?

SOLUTION: 68

PROBLEM: mrs. hilt 's favorite first grade classes are baking muffins . mrs. brier 's class bakes 18 muffins mrs. macadams 's class bakes 20 muffins and mrs. flannery 's class bakes 17 muffins . how many muffins does first grade bake in all ?

SOLUTION: 55

PROBLEM: j.t . has some superhero trading cards . he lost 14 of them . he gave 19 of them to his best friend . now he has 45 cards left . how many cards did j.t . have at first ?

SOLUTION:
78