Is the Law that says you can swap numbers around and still get the same answer when you add. Or when you multiply.

Examples:

You can swap when you add: 3 + 6 = 6 + 3

You can swap when you multiply: 2 × 4 = 4 × 2

Examples:

You can swap when you add: 3 + 6 = 6 + 3

You can swap when you multiply: 2 × 4 = 4 × 2