Question

How do you use the distributive property to calculate `6(19.99)` in your head?

Answer 1

Here's how I did it:

Explanation:

First, we know that `19.99` is almost `20`, or `0.01` away from it to be exact.

So our expression can be rewritten as `6(20-0.01)`.

Now, we use the distributive property to simplify that:

Following this image, we know that:
`color(blue)(6(20-0.01) = (6 * 20) + (6 * 0.01) = 120 + 0.06 = 120.06)`

So the answer is `120.06`.

Hope this helps!