Grade 7 Unit 4: Equations, Inequalities, Circles

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Across
  1. 3. the amount of space an object occupies
  2. 4. the order in which you add or multiply does not change the sum or product
  3. 5. a letter used in place of an unknown number or quantity
  4. 7. opposite operations
  5. 8. a line from the center of the circle to the circle (equal to half the value of the diameter)
  6. 14. pi times radius squared
  7. 15. the way in which you group numbers when adding or multiplying does not change the value of the expression
  8. 17. terms that have the same variable with the same exponents
  9. 18. the value for a variable or answer to an expression that has been evaluated
Down
  1. 1. a chord that passes through the center of a circle (twice the value of the radius)
  2. 2. a number added to 0 is that number; a number multiplied by 1 is that number
  3. 6. the distance around a circle (pi times 2 times the radius or pi times the diameter)
  4. 9. an expression comparing the value of two numbers
  5. 10. replacing a variable with a numeric value to determine the numeric value of an entire expression
  6. 11. the mutliplicative inverse (switch the numerator and denominator)
  7. 12. a line in the interior of a circle having endpoints on the circle
  8. 13. a number sentence that includes numbers and variables being combined using any of the four operations
  9. 16. a statement showing that two expressions are equal