Mathematics · Ages 7–10
Checkerboard
Aim: Long multiplication by multi-digit multipliers and the meaning of partial products.
×
6
7
2
3
4
5
Board total
0
Keep working — the total is not the product yet.
Each square is worth its label; squares on the same diagonal share a value and colour. Click a square to add a bead, right-click to remove one. Lay out the partial products, then slide and exchange to read the final product along the bottom row.