1. Sick - Well
2. First - Last
3. Open - Close
4. Before - After
5. Asleep - Awake
6. West - East
7. Short - Long
8. Bottom - Top
9. Work - Play
10. Leave - Stay
11. Teach - Learn
12. Worse - Better
13. False - True
14. More - Less
15. Sweet - Sour
16. Old - Young
17. Down - Up
18. Hot - Cold
19. Lose - Win
20. Sink - Float
21. South - North
22. Sad - Happy
23. Under - Over
24. Odd - Even
25. Truth - Lie
26. Measy - Tidy
27. Absent - Present
28. Go - Stop
29. Begin - End
30. Full - Empty
31. Beautiful - Ugly
32. Wrong - Right
33. Tame - Wild
34. Soft - Hard
35. Cry - Laugh
36. Rude - Polite
37. Sink - Rise
38. Dry - Wet
39. Dirty - Clean
40. Subtract - Add
Parent Tip: Review the logic above to help your child master the concept of crossworkd puzzle.