Chapter 7 Vocabulary

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Across
  1. 3. To______________ means to name a whole number in a different way.
  2. 6. A _______________ is a symbol that represents an unknown number.
  3. 7. You______________ when you do not need an exact answer.
Down
  1. 1. You do not need a pencil and paper when using _______________ math.
  2. 2. ______________ Numbers are numbers that are easy to compute mentally.
  3. 4. ____________ Value is the value given to the place a digit has in a number.
  4. 5. A _______________ line is a line that shows numbers in order using a scale.