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Edit Answers
12345678910111213141516171819
Across
  1. 3. The number that comes before nine.
  2. 6. Less than four.
  3. 7. A number that can be divided by 2 evenly.
  4. 10. The square of 4.
  5. 14. The result of subtracting 9 from 15.
  6. 15. A whole number greater than zero.
  7. 16. A spooky number often associated with bad luck.
  8. 17. One more than nine.
  9. 19. When you add 6 and 5, you get this.
Down
  1. 1. The answer to 6 multiplied by 2.
  2. 2. When you subtract 10 from 17, you get this.
  3. 4. The opposite of subtraction.
  4. 5. The total when you subtract 11 from 20.
  5. 6. The sum of 12 and 8.
  6. 8. A number that is one less than 20.
  7. 9. When you add 1 and 1, you get this.
  8. 11. The sum of 5 and 7.
  9. 12. The product of 4 and 3.
  10. 13. A single-digit number that comes after 4.
  11. 18. The total when you add 3 and 4.