Adding Metric Length, Mass, and Capacity Worksheets
How to Add Units of Metric Length, Mass, and Capacity  Adding values of length, mass, and capacity in metric system is easy. We know that in a metric system we use meter (m), centimeter (cm), kilometer (km), millimeter (mm), and many others. When adding the values of length, you must ensure that the two values have the same unit. You cannot add 10 cm and 11 mm together, if you do that it will be 10.11 cm. or 111 mm. You have to convert the units and add only when the units are same. The same is the case with mass and capacity. Values cannot be added unless they have the same units.

Intermediate Lesson
This lesson demonstrates how to add fraction based and whole numbers with units.
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Independent Practice 1
Students practice with 20 adding metric length, mass, and capacity. The answers can be found below.
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Independent Practice 2
Another 20 adding metric length, mass, and capacity problems. The answers can be found below.
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Homework Worksheet
Reviews all skills in the unit. A great take home sheet. Also provides a practice problem.
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Skill Quiz
10 problems that test the addition of metric length, mass, and capacity units.
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The Big Race...
Fran is getting ready for a race next week. Her usual stride is 31.5 inches and she is running 7.5 miles. How many strides will she use in the race? 15. 092. Change the miles to inches, 12 " x 5280 feet = 63, 360" per mile x 7.5 divided by 31.5.