If the digit in the tens place of 37,241 is increased by one and the digit in the thousands place is decreased by one, how has the number been changed?
  1. The number has been decreased by 990.
  2. The number has been decreased by 1,000.
  3. The number has been decreased by 1,010.
  4. The number has been increased by 10.
  5. The number has been increased by 1,010.