Respuesta :

Answer: 2300. 

Explanation:
There are 1000 millimeters in a meter. 
There are 100 centimeters in a meter. 
There are 10 millimeters in a meter. 

Multiply the number of meters by 1000 giving us 2000. 
Multiply the number of centimeters by 100 giving us 300. 

Add the numbers together to get 2300. 

Bonus info 
Milli: 1000
Centi: 100

That information should probably help you with other measurement conversions when you take chemistry or physics. 

Have a nice day! :) Good luck with the rest of middle school.