VERY IMPORTANT: you will need to register yourself for the Putnam competition using the above link.

Practice sets of problems for the Putnam competition:

Practice Set 1

Solutions to Practice Set 1

Practice Set 2

Solutions to Practice Set 2

Practice Set 3

Solutions to Practice Set 3

Practice Set 4

Solutions to Practice Set 4

Practice Set 5

Solutions to Practice Set 5

Practice Set 6

Solutions to Practice Set 6

Practice Set 7

Solutions to Practice Set 7

Practice Set 8

Solutions to Practice Set 8

Practice Set 9

Solutions to Practice Set 9

Practice Set 10

Solutions to Practice Set 10

Practice Set 11

Solutions to Practice Set 11

Practice Set 12

Solutions to Practice Set 12

Practice Set 13

Solutions to Practice Set 13

Practice Set 14

Solutions to Practice Set 14

Practice Set 15

Solutions to Practice Set 15

Practice Set 16

Solutions to Practice Set 16

Practice Set 17

Solutions to Practice Set 17

Practice Set 18

Solutions to Practice Set 18

Practice Set 19

Solutions to Practice Set 19

Practice Set 20

Solutions to Practice Set 20

Practice Set 21

Solutions to Practice Set 21

Practice Set 22

Solutions to Practice Set 22

Practice Set 23

Solutions to Practice Set 23

Practice Set 24

Solutions to Practice Set 24

Practice Set 25

Solutions to Practice Set 25

Practice Set 26

Solutions to Practice Set 26

Practice Set 27

Solutions to Practice Set 27

Practice Set 28

Solutions to Practice Set 28

Practice Set 29

Solutions to Practice Set 29

Practice Set 30

Solutions to Practice Set 30

Practice Set 31

Solutions to Practice Set 31

Practice Set 32

Solutions to Practice Set 32

Practice Set 33

Solutions to Practice Set 33