Add liters and milliliters by converting the liters to milliliters and then adding the volumes together
Home / 3rd grade / Measurements / Calculate / Add liters and milliliters
To add litres and millilitres together, you first need to convert the litres to millilitres. This is because litres and millilitres are related but different units of measurement for volume, and you cannot directly add them without first converting them to the same unit. Here's how to do it:
Convert litres to millilitres: As there are 1,000 millilitres in a litre, you need to multiply the number of litres by 1,000 to convert it to millilitres.
For example, let's say you have 3 litres and 250 millilitres. To convert the 3 litres to millilitres, you would multiply by 1,000:
3 litres x 1,000 = 3,000 millilitres
Add the converted volume to the millilitres: Now that you have the volume in millilitres, you can add it to the other volume, which is already in millilitres.
3,000 ml + 250 ml = 3,250 ml
So, the combined volume of 3 litres and 250 millilitres is 3,250 millilitres.
Another example, add 1.3 litres and 740 millilitres.
Converting the litres to millilitres we have 1.3 L x 1,000 = 1,300 ml.
Adding the millilitres we have 1,300 ml + 740 ml = 2,040 ml.
So, the combined volume of 1.3 litres and 740 millilitres is 2,040 millilitres.
This topic asks you to add volumes in litres and millilitres together by first converting the litres to millilitres. Your answers should be in millilitres.
Below is a table showing the first 6 question answer pairs for the topic "Add liters and milliliters" as used in the lessons for this topic. Our games and tests for the topic use these 6 items plus 10 additional question answer pairs.
The topic "Add liters and milliliters" is in the category Measurements for 3rd grade (ages 8 to 9).
Home / 3rd grade / Measurements / Calculate / Add liters and milliliters
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