Line them up
Ages 8–12
A row of numbers, all mixed up. Drag them so they run smallest to largest.
Which numbers?
How many rows?
Put them in order
Smallest Largest
Drag a card where you want it. Or use the keyboard: ← → to move along the row, Enter to pick a card up, ← → to carry it, Enter to put it down. Esc puts it back.
Every row in order
On paper too — Ordering numbers