Across
- 3. that works in a competent and organized way
- 6. to calculate the value or quantity of something
- 8. designed to make good use of energy
- 10. fix something that is damaged
- 11. construct or change something to improve it
- 12. designed to use less money
Down
- 1. to reduce the amount of time needed for a task
- 2. to find something
- 4. make something better
- 5. to investigate something systematically
- 7. easy to use or understand
- 9. become aware or understand clearly