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Mathematics · Ages 7–10

Bead Box 1–10

Aim: a × b = b × a and a × (b + c) = a×b + a×c.

3 bars of 4

3 × 4 = 12

4 bars of 3

4 × 3 = 12

3 × 4 = 4 × 3 — the order changes, the product stays 12.