Question

Give a reason to justify the equation. 3 • (10 • 12) = (3 • 10) • 12

Answer 1

According to commutative property of multiplication, changing the order of operants does not change the result. In that sense, no the numbers we multiply first, the result will be the same.

To prove this:

3 • (10 • 12) = 3 • (120) = 360

On the other hand:

(3 • 10) • 12 = (30) • 12 = 360

The result is exactly the same!