Algebraic expressions

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Across
  1. 5. Replacing the variable with a number value.
  2. 7. An unknown amount represented with a letter (x, y, z)
  3. 9. The answer to a division problem.
  4. 10. A number placed before or multiplying the variable.
  5. 11. The answer to a subtraction problem
Down
  1. 1. The values on which mathematical operations occur in an algebraic expression, typically separated by addition and subtraction.
  2. 2. A fixed value or number.
  3. 3. The rules tell us the sequence in which we should solve an expression with multiple operations.
  4. 4. The answer to an addition problem.
  5. 6. o find the value of the expression when the variable is replaced by a given number
  6. 8. The answer to a multiplication problem.