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.
--------
Question: Mrs. Sheridan has 11 cats . How many more cats does Mrs. Sheridan need to have 43 cats ?

Answer: 32


Question: Donald has 4 oranges . He finds another 5 . How many oranges does Donald have in all ?

Answer: 9


Question: Dave had to wash 29 short sleeve shirts and 11 long sleeve shirts before school . If he had only washed 35 of them by the time school started , how many did he not wash ?

Answer:
5