algebra 1

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Across
  1. 2. opposite numbers are the two numbers
  2. 3. expressions that are multiplied together
  3. 6. subtraction
  4. 7. division
  5. 9. whole number and/or the additive inverse of a whole number is an integer
  6. 11. an expression used to calculate a desired result, such as a formula to find volume or a formula to count combinations
  7. 12. makes a negative number positive.
  8. 13. an operation that is independent of the order of the numbers or symbols concerned
  9. 14. an operation in which the outcome is independent of the grouping of the symbols and numbers involved
  10. 15. way of rewriting a number as a fraction of 100
  11. 20. a mathematical sentence built from expressions using one or more equal signs
  12. 21. find all solutions to an equation, inequality, or a system of equations and/or inequalities.
Down
  1. 1. the number part in front of the non-numerical symbol(s) in an algebraic expression, signifying multiplication
  2. 4. a term or expression with no variables.
  3. 5. a number related to another in such a way that when these two numbers are multiplied together their product is 1
  4. 8. length of the boundary around a shape or a figure
  5. 10. addition
  6. 16. a number whose value never changes
  7. 17. value/magnitude of a number regardless of its sign
  8. 18. multiplication
  9. 19. a symbol that stands for an unknown quantity