67 Maths Puzzle 67

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Across
  1. 3. 1,2,3,4,5, etc are ______
  2. 6. 54 is a _______ of 9
  3. 8. 2 is a ______ of 12
Down
  1. 1. A right _______ is 90 degrees
  2. 2. 1/2 and 5/8 are _______
  3. 4. Zero, ___, Two
  4. 5. Smallest number with 3 digits
  5. 7. Subject of numbers
  6. 9. One, ___, Three