Question

What is `1.2 * 0.6`?

Answer 1

`0.72`

Explanation:

The number `1.2` has only one digit which is `2`. The same is for `0.6` - the only one digit is `6`.

Let me multiply each of them by ten:

`1.2 * 10=12`

`0.6 * 10=6`

When we have converted them to the non-digital numbers we can multiply them easily:

`12 * 6=72`

Now, we should come to the start: we had `1.2` and `0.6` which we each multiplied by `10`. Since both of them were multiplied by ten, now the result should be divided by `100` in order to obtain a correct number of digits.

`72/100=0.72`

So:

`1.2 * 0.6 = 0.72`