Challenges

The MATH+ Advent calendar problems will be released daily from 1 to 24 December:

Challenge 1

Challenge 2

Challenge 3

Challenge 4

Challenge 5

Challenge 6

Challenge 7

Challenge 8

Challenge 9

Challenge 10

Challenge 11

Challenge 12

Challenge 13

Challenge 14

Challenge 15

Challenge 16

Challenge 17

Challenge 18

Challenge 19

Challenge 20

Challenge 21

Challenge 22

Challenge 23

Challenge 24