Besides, if it is too boring, you can also challenge yourself and try the harder problems, or invent your own variations over the ones you are required to solve, or make a program to simulate some slightly different situation (for example, one that turns out not to be solvable analytically).
As enigma said, it gets as fun as you make it, and the more you play with the simple ideas now, the better off you will be later on, when faced with the real tough stuff. Also, the more techniques you learn, find or invent yourself now to solve simple stuff, the better prepared you will be for what comes later.