Integers

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Across
  1. 3. the solution to an addition problem
  2. 5. the solution to a division problem
  3. 6. numbers right of zero are what?
  4. 7. opposite of subtraction is
  5. 8. the solution to a subtraction problem
  6. 9. opposite of addition is
Down
  1. 1. opposite of division is
  2. 2. numbers left of zero are what?
  3. 4. opposite of multiplication is
  4. 6. the solution to a multiplication problem