Metric Metric ConversionsConversions

77thth Grade GradeMath OnlineMath Online

Blueprint SkillsBlueprint Skills

SPI 7.4.3SPI 7.4.3

Convert from oneConvert from one

unit to another withinunit to another within

the same systemthe same system

• The liter is the base unit of capacity in the metric system.

BASIC UNITS OF THE METRIC SYSTEM

• The meter is the base unit of length in the metric system.

• The gram is the base unit of mass in the metric system.

Prefixes

PrefixPrefix Meaning in Meaning in wordswords

Meaning Meaning inin

numbersnumbers

KiloKilo ThousandThousand 1,0001,000

HectoHecto HundredsHundreds 100100

DekaDeka TensTens 1010

DeciDeci TenthsTenths .1.1

CentiCenti HundredthsHundredths .10.10

MilliMilli ThousandthThousandthss

.100.100

To convert from one unit to another is like walking up and down steps.

Converting Units

Which way?Up or down?

When going from a smaller unit to a larger unit, you move UP the steps and the decimal moves to the LEFT .

Going Up???

When going from a larger unit to a smaller unit, you move DOWN the steps and the decimal moves to the RIGHT .

Going Down???

Let’s take a look!!!

Milli

Kilo

Deka

Basic Unit

Deci

Centi

Hecto

KingHenry

Died

ByDrinking

Chocolate

MilkBasic UnitLitersMetersGrams

UP steps,Decimals moveto the LEFT

Down steps,Decimals moveto the RIGHT

Practice Time

4.5 m = ? cm

What to do first in the problem

4.5 m = __ cm ?Find YOUR step, then move!!!

Basic

Deci

Centi

Milli

Deka

Hecto

Kilo Start here at Meters and Move DOWN to Centimeters. Decimal place moves to the RIGHT the same number of steps.*

*4.5

BasicLiterMeterGram

As you move the decimalyou will need to add zeros.

4 . 5 0 .

Is this your Final Answer?

4.5 m = 450 cm

Good Job!!

Quiz Time

1. 28 cm = ? mm2. 438 cm = ? m3. 72 g = ? mg4. 202 g = ? Kg5. 2L = ? mL

How did We do??

1. 28 cm =

280 mm2. 438 cm =3. 72 g =4. 202 g =5. 2 L =

4.38 m72,000 mg0.202 kg2,400 L

Yeah!!!Yeah!!!

We Are Done