Wait, isn't this a math class?

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12345678910111213141516
Across
  1. 1. What type of numbers are these? {1, 2, 3, 4, 5}
  2. 4. What type of numbers are these? {-1, -2, -3, -4, -5}
  3. 5. What type of numbers are these? {0, 1, 2, 3, 4, 5}
  4. 8. 20 x 5 = 100
  5. 9. 20 x 5
  6. 12. Parentheses, Exponent, Multiplication, Division, Addition, Subtraction
  7. 13. What type of numbers are these? {0.63763..., -1.29042...}
  8. 14. -
  9. 16. What type of numbers are these? {1/2, 0.3, 3.444, 3/4}
Down
  1. 2. +
  2. 3. ( )
  3. 6. 3
  4. 7. Multiplication, Division, Addition, Subtraction, Exponent
  5. 10. Put the letters in alphabetical __________ (a, b, c, d, e...)
  6. 11. 3/2
  7. 15. What type of numbers are these? {0, 1, -1, 1/2, 0.555, 0.5432...}