conversations.from: human
conversations.value: I'm completely lost with this math problem: While Greg was camping with his family for a week, it rained for 3 days. When he looked at the weather records, he saw that the amount of rain was 3 mm, 6 mm, and 5 mm on the three days. During the same week, it rained 26 mm at his house. How much less rain did Greg experience while camping?
  Can you give me a hand?
conversations.from: assistant
conversations.value: While camping there was 3 + 6 + 5 = 14 mm of rain in 3 days.
  Greg experienced 26 – 14 = 12 mm less rain at the campsite.