math crossword assignment

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Across
  1. 2. multiply something by one and get the same answer
  2. 5. adding numbers in any order, order doesn't matter.
  3. 7. point or number that is equally distance to both original numbers
  4. 9. numbers when used to count objects 1,2,3,4,....
  5. 13. changes a number from negative to positive
  6. 17. numerator
  7. 18. Center of the number line, evenly counted on both sides positive and negative numbers.
  8. 19. muliply a numbers reciprocal and the answer is 1
  9. 20. a way to represent locations of number, comparing numbers visualization of numbers.
Down
  1. 1. same numbers, same sign, their sum would both be zero.
  2. 3. decimal numbers that do not repeat or terminate.
  3. 4. numbers to the left of zero, less than zero.
  4. 6. set of rules of method on how to do a problem
  5. 8. numbers that are the same distance from 0
  6. 10. integers, fractions, decimals that either repeat or terminate.
  7. 11. counting numbers but starting 0
  8. 12. denominator
  9. 14. numbers to the right of zero that are greater than zero.
  10. 15. The answer for division problems
  11. 16. the space between two numbers