Fill in the blanks with >, <, or =.
1. 1 + 5 < 7
2. 2 + 3 > 4
3. 8 + 2 > 9
4. 6 + 4 < 11
5. 2 + 2 = 4
6. 5 + 4 > 8
7. 8 + 8 < 18
8. 6 + 3 = 9
9. 1 + 2 + 2 < 3 + 3
10. 9 – 2 = 7