Across
- 1. the answer to an addition problem
- 4. to spell wrongly
- 7. prefix meaning under or from below
- 8. wanting what someone else has that you do not
- 9. vehicle that goes underwater
- 10. the answer to a subtraction problem
Down
- 2. prefix meaning wrong or wrongly
- 3. something good, an advantage
- 5. underground transportation
- 6. to count wrongly