Lesson # 15
Metric Conversions
(Linear)
The best way to convert
Metric measurements…
Is
To
Understand
Them !
For Example…
To convert 2 kilometers to millimeters…
It would help if …
You understood how big each unit is!
A kilometer…
Is a bit of a long walk,
As a matter of a fact,
It is 1000 steps,
If each step is 1 meter long!
On the other hand…
A millimeter is quite small,
About as long as
A pencil’s lead is thick.
There are 10 of them in one centimeter,
And 1000 of them in
One meter!
Speaking of “centimeters”…
They are about as long as…
Your fingernail is …wide.
And
There are 100 of them in a meter !
So to convert metric
measurements…
Think about the units…
If you go from Bigger to Smaller…
you will have to multiply!
But if you convert from Smaller
to Bigger…
You will have to
Divide.
Lets look at some examples…
Convert 23.4 cm to millimeters.
23.4 cm = ? mm
23.4 X ? = ? mm
Times by 10
(because there are 10 mm in 1 cm)
Therefore
23.4 X 10 =
234 mm
Another example…
Convert 0.25 m to kms.
Difficult ?
Watch…
0.25 m = ? km
0.25 ÷ ? = ? Km
÷ by 1000 right
(Because there are 1000 m in 1 km)
Soooooo…
0.25 must be divided by 1000
Which means…
0.25 m = 0.0025 km!
Yahoo.
Going from Smaller to Bigger…
Divide !
÷
Got it ?
Going from Bigger to Smaller
Multiply!
And now…
Ten questions
For
Your viewing
Pleasure !
Get Ready
Get Set
Go !
Question # 1
246 km = ? m
Question # 2
135 mm = ? cm
Question # 3
468 mm = ? m
Question # 4
579 m = ? cm
Question # 5
24.8 m = ? cm
Question # 6
75.3 m = ? km
Question # 7
28.2 cm = ? mm
Question # 8
1.79 km = ? m
Question # 9
0.345 cm = ? m
Question # 10
0.768 km = ? mm
And now the answers.
Prepare
Yourself !
Question # 1
246 km = ? M
246 000
Question # 2
135 mm = ? Cm
13.5
Question # 3
468 mm = ? M
0.0468
Question # 4
579 m = ? Cm
57 900
Question # 5
24.8 m = ? Cm
2480
Question # 6
75.3 m = ? Km
0.0753
Question # 7
28.2 cm = ? Mm
282
Question # 8
1.79 km = ? M
1790
Question # 9
0.345 cm = ? M
0.00 345
Question # 10
0.768 km = ? Cm
768 000
The
End
Remember…
The
P
Word…
P
ractice !