Across
- 2. plus
- 5. addition
- 6. thousands
- 7. tens
- 9. hundreds
- 11. centimeter
- 17. multiplication
- 20. division
- 23. volume
- 24. mass
- 25. difference
- 27. numbers
Down
- 1. subtraction
- 3. mathematics
- 4. ones
- 8. quotient
- 10. equals
- 12. gram
- 13. length
- 14. kilometer
- 15. kilogram
- 16. divide
- 17. meter
- 18. product
- 19. minus
- 21. sum
- 22. times
- 26. weight