Addition, Subtraction, Multiplication and Division of Metric Measures

# Addition, Subtraction, Multiplication and Division of Metric Measures

Addition and Subtraction of Metric Measures

We add or subtract the metric measures in the same way as the whole numbers.

Example 1:  Add 2621, 3538 and 251.

Solution:

dm  cm  mm
1
8
1
-------------------
0
--------------------

Example 2:  Subtract 1589 from 6398.

Solution:
kg   hg   dag   g
8
–               9
------------------------
4              9
------------------------

## Multiplication and Division of Metric Measures

Example 1:  Multiply 1 km 3 hm 2 dam 8 m by 4.

Solution:

km hm dam m
8
×   4
-----------------
5    3    1    2
-----------------

Example 2:  Divide 6 kL 3 hL 5 daL 5 L by 5.

Solution:

kL hL daL L
5)       5   5
---------------------
1       1

## Converting Metric Units to Decimals

To convert a lower unit to a higher unit of measure, we convert the lower unit into a decimal fraction first and then change it into a decimal number to express in the higher unit like this:

Example 1:  Convert 3921 m in km
.
Solution: Since 1000 m = 1 km
Thus, 3921/1000 = 3.921 km

Example 2:  Convert 568 g in kg.

Solution: Since 1000 g = 1 kg
Thus, 568/1000 = 0.568 kg

Example 3:  Convert 3105 L in kL.

Solution: Since 1000 L = 1 kL
Thus, 3105/1000 = 3.105 kL

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