Question

What is 16.2 divided by 0.002?

Answer 1

If the decimal point is giving you a problem do this

8100

Explanation:

`0.002 = 0.02xx1/10`

`0.002 = 0.2color(white)("d")xx1/10xx1/10`

`0.002=2.0color(white)("d")xx1/10xx1/10xx1/10`

`0.002 = 2xx1/1000`
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

So `16.2-:0.002color(white)("ddd")` is the same as

`color(white)("ddd") 16.2-:2-:1/1000`

`color(white)("dddd")8.1-:1/1000`

`color(white)("dddd")8.1xx1000/1 =8100`

Answer 2

`8,100`

Explanation:

The division by the decimal is the biggest problem here.

Luckily we can get rid of the decimal by multiplying by a power of `10`. We need to multiply it by `1000`

However, we need to multiply the top and bottom by the same number, which is the same as multiplication by `color(blue)(1)`

`16.2/0.002 color(blue)(xx 1000/1000) = 16200/2" "larr` dividing by a whole number

`16200/2 =8,100`