Multiplication

Detailed description

1. A rectangular prism made of blocks. Dimensions 5 × 2 × 1. Underneath this diagram 5 × 2 = 2 × 5.
2. A rectangular prism made of blocks. Dimensions 5 × 2 × 3. Underneath this diagram (5 × 2) × 3 = (2 × 5) × 3.