• A number is even if it ends in 2, 4, 6, 8, or 0.
  • A number is odd if it ends in 1, 3, 5, 7, or 9.
  • even
  • odd
  • 26 ends in 6. 26 is even.
  • even
  • odd
  • 25 ends in 5. 25 is odd.
  • even
  • odd
  • 10 ends in 0. 10 is even.