1. HARD

Which number is the smallest?

  1. 12
  2. 14
  3. 13
  4. 11
  5. 15
 
2. HARD

Which number is the least: 77, 80, 59, or 64?

  1. 77
  2. 80
  3. 59
  4. 64
  5. None of the above
 
3. HARD

Which statement is true about the numbers 1, 01, and 001?

  1. They are all equal
  2. 1 is the greatest
  3. 001 is the least
  4. 1 is the smallest
  5. They are all different