Vocab puzzle

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Across
  1. 3. expression mathematical phrase that includes one or more variables.
  2. 7. a number, variable, or the product/ quotient of a number and one or more variable.
  3. 8. A symbol, usually a letter, that represents one or more numbers.
  4. 9. number a number that is either rational or irrational
  5. 10. is the numerical factor when a term has a variable.
Down
  1. 1. of operations the order to solve operation
  2. 2. to substitute a given number for each variable then simplify.
  3. 4. inverse the opposite or additive inverse of any number is a -. the sum of oppositions.
  4. 5. to replace an expression with its simplest form
  5. 6. equations algebraic expressions that have the same value for all values of the variables.
  6. 11. whole numbers and there opposites