The Number System Crossword

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Across
  1. 1. When a divisor is zero, i.e., any time any number is divided by zero.
  2. 6. A decimal in which a certain digit or sequence of digits repeats forever. Examples: 1/3, 1/7, 1/9.
  3. 7. The property that says you can regroup numbers when you add or multiply. Example: (2+1)+3 = 2+(1+3)
  4. 8. A decimal that that continues endlessly. Examples: 1/3, pi, and 3/7.
  5. 9. The property that saw you can swap numbers around and still get the same answer when you add or multiply. Examples: 6 + 3 = 3 + 6, 2 x 4 = 4 x 2
Down
  1. 2. The number being divided or separated.
  2. 3. The number doing the dividing.
  3. 4. A decimal that has digits that end. Examples: 0.25, 3.0375, and 4.
  4. 5. The solution to a division propblem.