Amazing Mathematics

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Across
  1. 4. It is the only even prime number
  2. 5. The name given to the answer of multiplication
  3. 6. 2,3,5,7..... are ______ numbers
  4. 7. The part of the fraction that tells us what we are focussing on
  5. 9. ___________ is repeated subtraction
Down
  1. 1. _______ is a number that divides another number completely
  2. 2. The product of two numbers is also called ________
  3. 3. A subject that deals with numbers
  4. 8. It is the only number that is neither prime nor composite