metric conversion

METRIC METRIC CONVERSIONCONVERSION

Count Up to Six Count Up to Six

Know Your Left From Your RightKnow Your Left From Your RightKing-Henry-Died-By-Drinking-Chocolate-

Milk

What are Metric What are Metric Conversions?Conversions?

►Sometimes we need to change from Sometimes we need to change from one measurement to another.one measurement to another.

►This is usually done because the unit This is usually done because the unit that is used is either too big or too that is used is either too big or too

small for that type of measurement.small for that type of measurement.

TOO BIG !!!TOO BIG !!!

525,568 525,568 millimetersmillimeters

Sometimes the number is too big for the Sometimes the number is too big for the unit being measured.unit being measured.

Too SmallToo Small

0.00654 km0.00654 km

Sometimes the number is too Sometimes the number is too small for the unit being small for the unit being

measuredmeasured

How Do We Fix This How Do We Fix This Problem?Problem?

We can correct these problems by We can correct these problems by doing a process called Metric doing a process called Metric Conversion. When you do a Metric Conversion. When you do a Metric Conversion, you are changing from Conversion, you are changing from one unit of measurement to another.one unit of measurement to another.

So How Do I Do A So How Do I Do A Metric Conversion?Metric Conversion?

We will be using a method called The We will be using a method called The Stair-step Method of Metric Stair-step Method of Metric Conversion.Conversion.

It requires you to move the decimal in It requires you to move the decimal in the number.the number.

The Stair-stepThe Stair-step

Kilo-Kilo-

Hecto-Hecto-

Deka-Deka-

base unitsbase units

Deci-Deci-

Centi-Centi-

Milli-Milli-

Grams, liters,meters

King-Henry-Died-By-Drinking-Chocolate-Milk

The Stair-step : METERThe Stair-step : METER

KmKm

HmHm

DamDam

MM

DmDm

CmCm

MmMm

METERS

King-Henry-Died-By-Drinking-Chocolate-Milk

How Do I Use This?How Do I Use This?

► -The first letter of the prefix in the unit -The first letter of the prefix in the unit of measurement tells you which step to of measurement tells you which step to start on. start on.

► -The first letter in the second unit of -The first letter in the second unit of measurement tells you which step to measurement tells you which step to stop on.stop on.

► -Find which step to start on, and count -Find which step to start on, and count the number of steps it takes to get to the number of steps it takes to get to the step that you need to stop on. the step that you need to stop on.

5.0 Km _?_H m


KmKm

HmHm

DamDam

MM

DmDm

CmCm

MmMm

METERS

How Do I Use This (cont.)?How Do I Use This (cont.)?

► If you went to the right(downstairs) If you went to the right(downstairs) the decimal in the first measurement the decimal in the first measurement moves that many places to the right. moves that many places to the right.

► If you went to the left (upstairs) then If you went to the left (upstairs) then the decimal moves to the left. Fill any the decimal moves to the left. Fill any empty places with zeros.empty places with zeros.

5.0 Km _50_H m

525568 mm = ? m525568 mm = ? m

The decimal in 525568 mm moves three The decimal in 525568 mm moves three places to the left, becoming 525.568 places to the left, becoming 525.568 m.m.

0.00654 km = ? m0.00654 km = ? m

0.00654 km becomes 6.54 m.0.00654 km becomes 6.54 m.

1.45m 1.45m ___ cm ___ cm

1450 14

514.5

.145

.0145

.00145

0% 0% 0%0%0%0%

1.1. 14501450

2.2. 145145

3.3. 14.514.5

4.4. 0.1450.145

5.5. 0.01450.0145

6.6. 0.001450.00145

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