Teacher:You are given a math word problem and you are supposed to apply a single mathematical operator 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.
Teacher: Now, understand the problem? Solve this instance: after collecting materials they started making recycled products to sell during the school 's recycling fair . if marcus made 26 pen holders from the milk bottles and annie was able to make 37 how many pen holders were made ?
Student:
63