Across
- 3. a whole number that can be positive, negative, or zero
- 5. adding to 180 degrees
- 7. mathematical model in which letters represent numbers
- 8. lines, planes or surfaces which remain continuously the same distance apart
- 9. a number that can be expressed as a fraction or ratio of whole numbers
Down
- 1. the longest side of a right angled triangle
- 2. a number which cannot be expressed as a fraction or ratio of whole numbers
- 4. adding to 90 degrees
- 6. at an angle of 90 degrees to a given line, plane, surface, or to the ground
- 10. the ability to understand and work with numbers