The answer to life, the universe, and everything. There are exactly 42 ways to add whole numbers up to 10 — split below by the biggest number in each.
Warm up with the two free-play games before diving into a set.
10 dots in a row, 9 spaces between them. Drop walls in to break the row into groups — the numbers add up to 10 every time. There are exactly 42 different partitions to find. (Same group sizes in a different order counts as the same partition.)
Tap a set to open it. Each set holds every partition whose biggest number is that value.
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 = 10
2 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 = 10
2 + 2 + 1 + 1 + 1 + 1 + 1 + 1 = 10
2 + 2 + 2 + 1 + 1 + 1 + 1 = 10
2 + 2 + 2 + 2 + 1 + 1 = 10
2 + 2 + 2 + 2 + 2 = 10
The narrated video version (coming soon).