Question

Explain how you can use 4S facts to solve 8×3?

Answer 1

8X3 equals 24
3x 8 equals 24

Eight rows of 3 =24
3 rows of 8 = 24

Answer 2

Using 4's facts we could separate 8 into 2(4), then 2(2)(2), and then multiply them one time by three. So, we would have 2(2)(2)(3)=2(2)6=2(12)=24.

In most of the cases, using 4's facts implies to also used doubles. This is an strategy to help children to multiply by 4, using the well-known 2's multiplications facts. In other words, the fact is to make easier the multiplication, using other resources that children already know.