Vocabulary Words (Chapter 1 Review)

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Across
  1. 1. a number in a set that is much higher or lower than the other numbers
  2. 3. numbers, use these numbers to compute easily mentally
  3. 4. the average number in a set of numbers
  4. 5. value, distance from 0 on a number line
  5. 6. set of positive whole numbers there opposites and zero
  6. 9. property, change the grouping (a+b)+c = a+(b+c)
  7. 10. , the number that occurs most often in a set of numbers
Down
  1. 1. , two number that are the same distance from 0 on a number line, but in opposite directions
  2. 2. , the middle number in a set of numbers
  3. 3. property, change the order in an expression (a+b = b+a)
  4. 7. , the difference between the greatest and the least numbers
  5. 8. a strategy used when estimating