Across
- 3. rational numbers and irrational numbers form a set of
- 5. to do this you get the variable with a coefficient of 1 alone on one side of an equation
- 7. a phrase that includes numbers and operations, but no variables
- 8. is a ratio that compares a number to 100
- 12. can be true or false
- 13. means corresponding angles are congruent and corresponding side lengths are in proportion
- 15. undoes another operation
- 17. An equation that is true for all elements of its domain
- 22. use this to undo addition
- 24. a ratio between numbers measured in different units
- 26. a solution of an equation with two variables
- 29. pairs of real numbers that have a sum of 0
- 30. terms with exactly the same variable factors
Down
- 1. a number less than 0
- 2. an equation that states that two ratios are equal
- 4. an equation with a varible
- 6. cannot change
- 9. a ratio of two equivalent measures in different units
- 10. a quantity that can take on different values
- 11. use this to undo division
- 14. an equation between two variables that gives a straight line when plotted on a graph
- 16. equations that have the same solutions
- 18. a number greater than 0
- 19. can use this property to isolate the variable on one side
- 20. you can use these to find missing side lengths in similar figures for indirect measurment
- 21. a mathematical phrase witch can contain numbers and variables
- 23. formed by a single term or by a group of terms
- 25. you can use this to clear fractions or decimals
- 27. a ratio of the amount of change to the original amount
- 28. you use these to model an equation using tiles