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