Question

How to express a mass of 5.712 grams in milligrams and kilograms

Answer 1

1 gram = 1000 milligrams
/ move the decimal to the left 3 because you multiply by 10^3
5.712 grams = 5,712 milligrams

1 gram = 0.001 kilograms
/ move decimal to the right 3 because you multiply by 10^ -3
5.712 grams = 0.005712 kilograms

Answer 2

Answer with explanation:

We know that 1 gram = 1000 milligrams

Now, To express 5.712 grams in milligrams we multiply it by 1000,

i.e.$\text{5.712 grams}=5.712\times1000=5712\text{ milligrams}$

Also, 1 Kilogram = 1000 grams

To express 5.712 grams in kilograms we divide it by 1000,

i.e.$\text{5.712 grams}=5.712\times\dfrac{1}{1000}=0.005712\text{ kilograms}$

In scientific form , $0.005712=5.712\times10^{-3}$

Hence, 5.712 grams = $5.712\times10^{-3}\text { kilograms}$