Question

How would you write "4/1000" In decimal form?

Answer 1

0.004

Explanation:

`(4)/(1000)` is basically
`4 \cdot 10^{-4` (if you've learned scientific notation), so all you have to do is move the decimal to the left four times. That gives us

`4.0\\0.4\\0.04\\\boxed{0.004}`

More depth:

`10^{-4` also equals 0.001, so
`4 \cdot 0.001 = \boxed{0.004.}`

*You may do division and find the answer too. However, these ways are quicker.

Answer 2

0.004

Explanation:

Since 4/10 is 0.4 and 4/100 is 0.04, 4/1000 must be 0.004