Across
- 4. two numbers being added together can "switch positions and will still equal the same number
- 5. if more than two numbers are being added together, numbers can "rearrange" and still equal the same number
- 6. a number that can be written as fraction where "a" and "b" are integers and "b" is not 0
- 7. the set of whole numbers and their opposites
Down
- 1. the distance between a number and 0.
- 2. a number's opposite and the sum of a number and its additive inverse is 0
- 3. numbers being added together to make a sum