Complete all challenges

Solve or skip 25 plus examples

Solve or skip 25 minus examples

Solve or skip 25 times examples

Solve or skip 50 plus examples

Solve or skip 50 minus examples

Solve or skip 50 times examples

Skip 50 examples

Complete or skip your first example

Did you really use skip in kids mode?

Answer to the Ultimate Question of Life, the Universe, and Everything

Solve or skip 25 examples in kids mode

Solve or skip 50 examples in kids mode