Given a math word problem, answer the following question. You might need to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the question and then only report the final numerical answer.
--------
Question: mrs. hilt ran 3 miles on monday 2 miles on wednesday and 7 miles on friday . how many total miles did she run that week ?

Answer: 12

Question: a farmer planted 2 tomato seeds 10 cucumber seeds and 3 pumpkin seeds . how many seeds did he plant all together ?

Answer: 15

Question: after the cleaning the rivers they went on to tidy up the farmlands . if lizzie 's group covered 250 square feet of land and the other group covered 265 how many more square feet of land remains to be cleaned if there is total of 900 square feet of land ?

Answer:
385