Chapter 1

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Across
  1. 3. the name given to each group of three digits on a place value chart
  2. 5. two numbers that are the same
  3. 6. the usual way of writing a number that shows only digits
  4. 7. a line with numbers on it in order at regular intervals
Down
  1. 1. the form of a number that uses written words
  2. 2. the value given to a digit by its position in a number
  3. 4. a number that less than the greater number