Chapter 1 & 2

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Across
  1. 3. has two parts, a base and an exponent
  2. 6. a mathematical phrase that can include numbers variable and operations and symbols
  3. 8. a symbol, usually a letter, that represents one or more numbers
  4. 9. numbers counting numbers, including 0
Down
  1. 1. replace a numerical expression with its simplest name
  2. 2. whole numbers and their opposites
  3. 4. sentence an equation that contains one or more variables
  4. 5. counting numbers, excluding 0
  5. 7. a mathematical sentence that uses an equal sign