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.

Haley and her friends were recycling paper for their class . For every 3 pounds they recycled they earned one point . If Haley recycled 11 pounds and her friends recycled 16 pounds , how many points did they earn ?
9

In fourth grade there were 10 students at the start of the year . During the year 4 students left and 42 new students came to school . How many students were in fourth grade at the end ?
48

There were 2 friends playing a video game online when 2 more players joined the game . If each player had 3 lives , how many lives did they have total ?
12