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: Jason went to the mall on Saturday to buy clothes . He spent $ 14.28 on shorts and $ 4.74 on a jacket . In total , how much money did Jason spend on clothing ?

SOLUTION: 19.02

PROBLEM: Mary has 9 yellow marbles . Joan has 3 yellow marbles . How many yellow marbles do they have in all ?

SOLUTION: 12

PROBLEM: Jessica is baking a cake . The recipe calls for 8 cups of flour and 2 cups of sugar . She already put in 4 cups of flour . How many cups of flour does she need to add ?

SOLUTION:
4