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Metric units of volume review (L and mL)

Review the size of liters and milliliters and how to convert between the two.  Then, try some practice problems.

Metric units of volume

Volume measures capacity. For example, the volume of a bowl is the amount of space inside the bowl or how much water, for example it would take to fill the bowl.
In the metric system of measurement, the most common units of volume are milliliters and liters.

How big is a milliliter?

A single raindrop contains about 1 milliliter of liquid:

How big is a liter?

This bottle contains about 1 liter of liquid:
Want to learn more about metric units of volume? Check out this video.
Problem 1A
Identify the most reasonable unit to measure the volume of a neighborhood swimming pool.
Choose 1 answer:

Want to try more problems like this? Check out this exercise,

Converting liters to milliliters

1 liter=1000 milliliters
To convert  liters to milliliters we multiply the number of liters by 1,000.
8 liters=8×1000=8000 milliliters

Converting milliliters to liters

1 milliliter=11000 liter
To convert milliliters to liters we divide the number of milliliters by 1,000.
45 mL=451000=45÷1000=0.045 L
Problem 2A
49 liters =
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0.75
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4

Want to try more problems like this? Check out these exercises:
Convert larger units to smaller units
Converting between units

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