Answer:
5,213mg
Step-by-step explanation:
So, there are multiple ways to convert the different metric units, but I am going to explain how I was taught in elementary school, since it's the most simplest explanation.
To start off with, you want to memorize this saying:
King Henry Died By Drinking Chocolate Milk
Each beginning letter stands for a different metric unit.
Kilo, Hecto, Deka, Base, Deci, Centi, Milli
Base stands for your base, for instance, meter, gram, and liter would be considered your base units.
dg stands for Decigram, and mg stands for Milligram.
Then, you want to write this out:
KHDBDCM
If you can remember that saying above, writing these letters should be easier.
Once you write that down, you need to draw an arrow from each letter, starting from the second D, since the second D stands for Deci. You will stop the arrow at M since M stands for Milli.
The arrow should look something like the picture attached.
Count how many bumps the arrow does. There are 2 in total.
You then move your decimal 2 places to the right, since that's where the arrow is going.
52.13dg = 5,213mg
Remember that the decimal is invisible once it becomes a whole number. So, the decimal isn't necessary.
In conclusion, the answer is 5,213mg.
I hope this helped, have a good day!