conversations.from: human
conversations.value: I need a clearer understanding of how to solve: Jerry has an interesting novel he borrowed from a friend to read over the weekend. The book has 93 pages. On Saturday, he reads 30 pages. On Sunday, he goes to church and comes back, sits down, and reads 20 pages of the book. How many pages are remaining before Jerry can finish the book?
conversations.from: assistant
conversations.value: When Jerry reads 30 pages on Saturday, he would be remaining with 93-30 = 63 pages.
  After reading an additional 20 pages on Sunday, he would be remaining with 63 – 20 = 43 pages.