vocabulary

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Across
  1. 1. a usually formal statement of the equality or equivalence of expressions
  2. 5. a single number or variable, or numbers and variables multiplied together
  3. 6. the relationship between two expressions that are not equal
  4. 8. less than zero and opposite in sign to positives
  5. 10. a mathematical phrase that can contain ordinary numbers, variables, and operations
Down
  1. 2. another name for the additive inverse of a number
  2. 3. quantity that can change within a problem
  3. 4. an operation that undoes the effect of another operation
  4. 7. natural numbers and their opposites and zero
  5. 9. real numbers that are greater than zero