Across
- 2. ebullient
- 4. reciprocal
- 5. collaborate
- 7. coefficient
- 10. combine
- 11. decimal
- 13. extend
- 16. perseverance
- 17. enthusiasm
- 18. participate
Down
- 1. proportion
- 3. multiply
- 6. expression
- 8. solve
- 9. apply
- 10. expression, numerator
- 12. source
- 14. algebra
- 15. exponents