Math puzzle

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Across
  1. 3. keep, change, flip
  2. 5. The assumption that speed stays the same throughout each interval of distance of time.
  3. 6. one part in every hundred
  4. 7. square, triangle, trapezoid
  5. 8. 1 divided by a number equals that number
  6. 10. Commutative, Associative and Distributive
Down
  1. 1. a question that has more than one answer.
  2. 2. multiplying both the divisor and dividend by the same power of 10 maintains the equality of the expression.
  3. 4. a ratio that compares two quantities
  4. 9. comparing values