Lesson # 18
Metric Conversions
MASS !
Yes…Mass
And
It has nothing to do
with church.
However, you may need help
From
God
If you do not
Pay
Attention !
Mass
It’s the thing often referred to as weight.
Like…
A loaf of bread has a mass of 645 grams
Or
“You” might have a mass of 80 kg
Like your fit and trim
Math teacher !
He is so trim…
He tilts the scale at a whopping
80 kg.
That’s
175 pounds.
(Mostly muscle)
So what then is a kg?
A kg is one thousand
G’s.
So what is a G?
It’s a gram.
And a gram is
1000 times greater
than
a
mg.
A gram is…
About the mass of a blueberry!
1000 of them
Make
1 Kilogram !
And
A lot of muffins.
And an “mg” is…
A milligram !
They are really small.
Doctors usually measure pills in
Milligrams.
One pill would be close to 100 mg.
To summarize…
1 kg = 1000 grams
1000 mg = 1 gram
Sooooo…
1 000 000 mg = 1 kg
Got it?
Good.
Now let’s look at the conversion.
It is very similar to
Other metric conversions.
First…
Decide if you are converting…
Bigger to smaller
Or
Smaller to bigger.
Once you decide…
If converting
bigger to smaller…
Multiply !
X
If converting…
Smaller to bigger
Divide
÷
Don’t forget…
1000 mg = 1 g
1000 g = 1 kg
1 000 000 mg = 1 kg
Here is an example…
3.2 g = ? Mg
3.2 X 1000 =
3200 mg
The decimal moved 3 places.
Another example…
5.67 kg = ? Mg
5.67 X 1 000 000 =
5 670 000 mg
The decimal moved 6 places !
And now…
For your viewing pleasure …
10 practice questions !
Get Ready
Get Set
Go !
Question # 1
123 kg = ? g
Question # 2
456 g = ? mg
Question # 3
7kg = ? mg
Question # 4
89 mg = ? g
Question # 5
123 g = ? kg
Question # 6
456 mg = ? kg
Question # 7
7.89 g = ? mg
Question # 8
0.123 kg = ? g
Question # 9
45.6 g = ? kg
Question # 10
78.9 mg = ? g
And now the answers.
Prepare
Yourself !
Question # 1
123 kg = ? G
123 000
Question # 2
456 g = ? Mg
456 000
Question # 3
7 kg = ? Mg
7 000 000
Question # 4
89 mg = ? G
0.089
Question # 5
123 g = ? Kg
0.123
Question # 6
456 mg = ? Kg
0.000 456
Question # 7
7.89 g = ? Mg
7890
Question # 8
0.123 kg = ? G
123
Question # 9
45.6 g = ? Kg
0.0456
Question # 10
78.9 mg = ? G
0.0789
Almost…
The
End
Remember…
The
P
Word…
P
ractice !
Now…
The
End