Chapter 2 Decimal Operations - Lesson 2.6 Measuring In Metric Units Worksheet
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Measuring in Metric Units
Now
B E F O R E
W H Y ?
You used metric units.
You’ll measure and estimate
So you can estimate the mass
using metric units.
of a bike, as in Ex. 20.
The
metric system
is a decimal system of measurement. The metric
Word Watch
system has units for length, mass, and capacity.
metric system, p. 80
The
meter (m)
is the basic unit of length in the metric system.
Length
length: meter, millimeter,
Three other metric units of length are the
millimeter (mm)
,
centimeter, kilometer,
centimeter (cm)
, and
kilometer (km)
.
p. 80
mass: gram, milligram,
You can use the following benchmarks to estimate length.
kilogram, p. 81
capacity: liter, milliliter,
1 millimeter
1 centimeter
1 meter
kiloliter, p. 82
thickness of
width of a large
height of the
a dime
paper clip
back of a chair
1 kilometer combined length of 9 football fields
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Using Metric Units of Length
E X A M P L E
Estimate the length of the bandage by imagining paper clips laid
next to it. Then measure the bandage with a metric ruler to check
your estimate.
Estimate using paper clips.
1
About 5 large paper clips fit
next to the bandage, so it is
about 5 centimeters long.
Measure using a ruler.
2
A typical metric
ruler allows you to measure
Each centimeter is divided
only to the nearest tenth of
into tenths, so the bandage
cm
1
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4
5
a centimeter.
is 4.8 centimeters long.
80
Chapter 2
Decimal Operations
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