| | | 9 21 ︵ | ︶ | 100 | 50 | 5 3 2 | ︽ | ︾ | | | | | 1. | | 2. 10 | 1 10 | | | 3. 5 | | 80 1 | 1 | | 4. 100 | | | ︔ | | | | | | | | | | | | | | | |