Across
- 2. natural numbers, their opposites, and zero
- 4. either vertical or horizontal, starting at zero, the positive numbers progress to the right (or up) and the negative numbers progress to the left (or down)
- 5. the set of numbers containing all of the rational and irrational numbers
Down
- 1. why a mathematical idea is important and how it works
- 3. can be Integers, fractions, and repeating and terminating decimals