Wildwood Number Duel
Leo the lion cub wants to play! Work out each sum in your head and pick the answer. Every right answer lets PlayBuddy toss an acorn.
How to play
A sum shows on the card, three or four numbers long. Work it out in your head, picturing the beads, then pick the answer from the chips or type it and press Enter. Each right answer lets PlayBuddy toss an acorn that pushes Leo back toward the trees; ten acorns and Leo is tamed. A wrong pick only costs a moment, and if Leo reaches the camp he just wants to play.
Mind math
Children who know the abacus well can see its beads with their eyes closed and move them in their head. This duel practices exactly that, with one-digit or two-digit sums. Mind math is taught in Level 9, Mind Castle.