Сравни. поставь знаки > < или = , , , , , , , , 9--1, 10--8, 8-+1, 6-+2, 6-+1.

16>11, 17<19, 18>11, 19>14, 20>16, 18>17, 19>12, 20>10, 9-2<9-1, 10-4>10-8, 8-2<7+1,6-2<7+2, 6-3<6+1.
Все :D

16>11, 17<19, 18>11, 19>14, 20>16, 18>17, 19>12, 20>10, 9-2<9-1, 10-4>10-8, 8-2<7+1, 6-2<7+2, 6-3<6+1