Module 3: Rational Numbers

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Across
  1. 4. 15 + 8 + (-3) = ___
  2. 6. A set of whole numbers and their opposites.
  3. 8. This is helpful when you don’t need an exact answer.
  4. 9. Victor borrowed $21.50 from his grandmother to go to the movies. A week later he paid her $21.50 back. How much does he still owe her?
  5. 10. -1 + 7 = ____
  6. 13. -2.9 is the ___ of 2.9
  7. 16. If the signs are the same when multiplying rational numbers then the result is ___.
  8. 17. If the signs are the different when multiplying rational numbers then the result is ___.
  9. 18. -1.5 + 3.5 + 2 = ___
Down
  1. 1. Should the quotient of an integer divided by a nonzero integer always be a rational number?
  2. 2. A _______ line can be used to add rational numbers with different signs.
  3. 3. A type number that can be written as a ratio of two integers a and b, where b is not a zero.
  4. 5. A decimal number for which the decimal comes to an end.
  5. 7. A decimal where one or more digits repeat infinitely.
  6. 11. 15 + (-25) + 30 = ___
  7. 12. -4.5 + 4.5 = ___
  8. 13. -3 + (1.5) + (2.5) =
  9. 14. -12 + 8 + 13 = ___
  10. 15. 2.5 + (-2.5) = ___
  11. 18. 1.5 + 3.5 = ___