Math Crossword Puzzle

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Across
  1. 3. A pair of rounded brackets used to mark off a numerical phrase
  2. 6. Making a number simpler or more direct
  3. 8. Part of a number not represented by a decimal
  4. 9. The process of repeatedly adding numbers together
  5. 10. Separating two or more numbers to make a smaller number
  6. 12. Taking two or more numbers away from other numbers to make a smaller number
Down
  1. 1. A number represented by a letter that can be changed
  2. 2. The inverse of a value or number
  3. 4. A number that tells you how many times to use that number in multiplication
  4. 5. Putting two or more numbers together to make a larger number
  5. 7. The main focus of math and the things most used
  6. 8. a number that fits exactly into a given number, or divides a particular number with no remainder
  7. 11. The study of numbers, shapes, patterns, quantity, and space