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