math

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Across
  1. 2. equation
  2. 3. doesn't change
  3. 5. including numbers and expression
  4. 7. average
  5. 8. mathematical expression
  6. 9. obstruct
  7. 11. steepness
  8. 12. real number
Down
  1. 1. statement involving two different numbers
  2. 4. multiply a number and variable
  3. 6. able to change
  4. 10. difference average change