NUMBER RECYCLER

Lift numbers off the belt into the empty slots to hit the target. Two minutes, four phases, full PEMDAS by the end.

1. Press A S D F — one key per slot, left to right — or click a piston.
2. The tile with the white ring is the one the piston will grab. Release to take it.
3. Missed? The problem stays. Click a slot or hit ⌫ to change one number.
4. Glowing tiles fit the next empty slot (phase 1, and your whole first run).

RUN COMPLETE