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Estimating Large Numbers
Large numbers can be difficult to work with. Sometimes you don't need to
have an exact number, but a number that is close to the exact number.
Estimating is
one way to find a number that's easier to work with.
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 Million
is a large number
that is hard to count.
When dealing with millions
sometimes you need to estimate
the number of items.
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| millions |
hundred
thousands |
ten thousands |
thousand |
hundreds |
tens |
ones |
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1 |
0 |
0 |
0 |
0 |
0 |
0 |
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Example One
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How many
stars are in the sky on a starry night?
If you were to look at the sky on a starry night, it would be hard
to count the total number of stars.
It would be impossible to count all
the stars in the sky.
You need to estimate about how many
stars are in the sky.
You can estimate and say that there
are more than a million stars in the
sky.
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Example Two
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If you filled a
grocery bag full of Hershey Kisses, how much candy
is there in a grocery bag?
You can count the number
of candy in a grocery bag.
It would not be impossible to count
all the candy in the grocery bag.
You do not need to
estimate how much candy there is
in a grocery bag.
Since you do not need to estimate, you
can get an exact number, and see that a million Hershey Kisses
would not fit in a grocery bag.
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Let's Practice!
click
here
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Remember:
If an item is to large to count,
you need to estimate to find an
approximate number.
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