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