conversations.from: human
conversations.value: I'm stuck on this math problem: If 100 pieces, each 15 centimeters long, are cut from a 51-meter long ribbon, how much ribbon remains ?
  Can you help?
conversations.from: assistant
conversations.value: The total length cut from the 51-meter ribbon is 100 x 15 centimeters = 1500 centimeters.
  Since 1 meter is equal to 100 centimeters, then 1500 centimeters is equal to 1500/100 = 15 meters.
  Therefore, 51 - 15 = 36 meters of ribbon remains.