Algebra key words

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Across
  1. 5. is the statement which shows the equality of two expressions separated by equal sign (=)
  2. 6. one part of an algebraic expression which may be a number, a variable or a product of both
  3. 7. the same
  4. 9. to replace algebraic letters of symbols with values
  5. 11. To use the rules of arithmetic and algebra to rewrite an expression as simply as possible.
  6. 12. To multiply out the parts of an expression
Down
  1. 1. Rules and conditions in mathematics which are expressed using numbers and more than one variable
  2. 2. a letter or symbol representing a quantity that can change or vary, taking on different values
  3. 3. these have the same variables and can be combined using addition or subtraction
  4. 4. a quantity having a fixed value that does not change or vary, such as a number
  5. 7. a mathematical phrase that combines numbers and/or variables using mathematical operations
  6. 8. to provide the meaning of
  7. 10. An equation which is true for every value of the variable is called an identity equation