Math Crossword Puzzle

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Across
  1. 3. A pair of numbers that gives the location of a point on the coordinate plane
  2. 4. A number and its opposite are __ of each other
  3. 6. A number used to multiply a variable
  4. 7. Numbers that are the same distances from zero but on opposite sides of 0
  5. 9. A grid formed by two number lines that intersect in a right angle at the origin
  6. 13. Is a mathematical phrase that contains one or more variable and/or operations
  7. 14. Any number that can be written as a over b where b does not equal to 0
  8. 15. A letter or symbol used to represent an unknown number
  9. 16. Positive and negative whole numbers
Down
  1. 1. A number formed by repeated multiplication of the same factor is called a power. You can use an exponent and a base to write a number
  2. 2. Non-negative numbers with no fraction and decimal parts
  3. 5. A number greater than 1 that has more than two whole-number factors
  4. 8. A number that divides another number, leaving no remainder
  5. 10. The 4 areas created by two axes on the coordinate plane
  6. 11. The number is the product of that number and another whole number
  7. 12. a whole number greater than 1 that has exactly two factors, itself and 1