Math Puzzle

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Across
  1. 2. The name given to the process of multiplying a number by a number
  2. 5. Founder main element of the mathematical universe
  3. 6. The name given to the result part in the division operation
  4. 9. In fractional operations the symbol that separates the top number from the bottom number and indicates the result
  5. 11. Name given to the process of subtracting a digit from a digit
  6. 12. Progression of a series of numbers by a certain rate
  7. 13. The sign that allows us to add something
Down
  1. 1. The name of the operation that allows one number to take how much of another number has from itself
  2. 3. İn fractional operations , name given to the number above the fraction bar
  3. 4. The name of the symbol used to subtract numbers from each other
  4. 7. Numbers that are not divisble by any number expect itself and one
  5. 8. The first set after the set of natural numbers
  6. 10. Name given to the process of adding a number to a number