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<p>
Guided Practice - using a table Insert table
</p>
<p>
Show the students how to breakdown numbers using table and the expended form.
</p>
<p>
Insert table by:
<br />
hundred millions
<br />
ten millions
<br />
one millions
<br />
hundred thousands
<br />
ten thousands
<br />
one thousands
<br />
hundreds
<br />
tens
<br />
ones
<br />
<br />
use the following numbers:
<br />
851,287,128
<br />
712,623,532
<br />
112,921,982
<br />
561,761,835
</p>
<table style="width: 763px; height: 184px;" border="1">
<tbody>
<tr>
<td rowspan="2" width="10%" valign="top">
Numbers
<br />
<br />
</td>
<td colspan="3" width="10%" valign="top">
<br />
Millions
<br />
<br />
</td>
<td colspan="3" width="10%" valign="top">
<br />
Thousands
<br />
<br />
</td>
<td colspan="2" width="10%" valign="top">
<br />
Units
<br />
</td>
</tr>
<tr>
<td width="10%" valign="top">
Hundred
<br />
</td>
<td width="10%" valign="top">
Ten
<br />
</td>
<td width="10%" valign="top">
One
<br />
</td>
<td width="10%" valign="top">
Hundred
<br />
</td>
<td width="10%" valign="top">
Ten
<br />
</td>
<td width="10%" valign="top">
One
<br />
</td>
<td width="10%" valign="top">
Hundreds
<br />
</td>
<td width="10%" valign="top">
Tens
<br />
</td>
<td width="10%" valign="top">
Ones
<br />
</td>
</tr>
<tr>
<td width="10%" valign="top">
a.851,287,178
<br />
</td>
<td width="10%" valign="top">
8
<br />
</td>
<td width="10%" valign="top">
5
<br />
</td>
<td width="10%" valign="top">
1
<br />
</td>
<td width="10%" valign="top">
2
<br />
</td>
<td width="10%" valign="top">
8
<br />
</td>
<td width="10%" valign="top">
7
<br />
</td>
<td width="10%" valign="top">
1
<br />
</td>
<td width="10%" valign="top">
7
<br />
</td>
<td width="10%" valign="top">
8
<br />
</td>
</tr>
<tr>
<td width="10%" valign="top">
b.133,931,135
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
</tr>
<tr>
<td width="10%" valign="top">
c.566,869,672
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
<td width="10%" valign="top">
<br />
</td>
</tr>
<tr>
<td style="vertical-align: top;">
d.234,567,678
<br />
</td>
<td style="vertical-align: top;">
<br />
</td>
<td style="vertical-align: top;">
<br />
</td>
<td style="vertical-align: top;">
<br />
</td>
<td style="vertical-align: top;">
<br />
</td>
<td style="vertical-align: top;">
<br />
</td>
<td style="vertical-align: top;">
<br />
</td>
<td style="vertical-align: top;">
<br />
</td>
<td style="vertical-align: top;">
<br />
</td>
<td style="vertical-align: top;">
<br />
</td>
</tr>
</tbody>
</table>
<p>
<br />
<br />
From the above table, the place value of each digit in the number 851,287,128 is as follows:
<br />
8 - hundred millions
<br />
5- ten millions
<br />
1 - one millions
<br />
2 - hundred thousands
<br />
8 - ten thousands
<br />
7 - one thousands
<br />
1 - hundreds
<br />
2 - tens
<br />
8 - ones
<br />
<br />
<br />
<br />
<br />
**When we read numbers, we say "millions", "thousands" or ones only after the ONE MILLION, ONE THOUSAND, or ONE place.
<br />
For example, in 851,287,128, we do not say:
<br />
eight hundred million fifty million one million two hundred thousand eighty thousand seven thousand one hundred twenty eight
<br />
NO!
<br />
We say it only after the ONE MILLION, ONE THOUSAND, or ONE place. (A good hint is to say it right before the comma!)
<br />
So, in 851,287,128, we say:
<br />
eight hundred fifty one MILLION, two hundred eighty seven THOUSAND, one hundred twenty eight
<br />
YES! :)
<br />
<br />
<br />
Now, fill in the following table for 712,623,632:
<br />
hundred millions -
<br />
ten millions - 1
<br />
one millions-
<br />
hundred thousands - 6
<br />
ten thousands -
<br />
one thousands -
<br />
hundreds -
<br />
tens -
<br />
ones - 2
<br />
<br />
***
<span style="font-weight: bold;">
For the expended form
</span>
<br />
<br />
exampple1: Write this number 851,287,128 in the expeneded form:
<br style="font-weight: bold;" />
<br style="font-weight: bold;" />
<span style="font-weight: bold;">
Solution:
</span>
<br />
this number can be writte s follows:
<br />
(8*100 000 000)+(5*10 000 000)+(1*1000 000)+(2*100 000)+(8*10 000)+(7*1 000)+(1*100)+(2*10)+(8)
<br />
<br />
therefor 851,287,128= 800 000 000+50 000 000+1 000 000+200 000 +80 000+7000+100+20+8
<br />
<br />
The number is as 851million, 287 thousand, 1hundred, 2 tens,8 ones.
<br />
<br />
We reead this number as, eight hundred fifty one million, two hundred eighty seven thousand, one hundred twenty-eight.
<br />
<br />
Example 2:
<br />
<br />
Write this a single number:
<br />
7*100 000 000+1*10 000 000+2*1 000 000+6*100 000+3*1 000+6*00+3*10+2
<br />
<br />
<span style="font-weight: bold;">
answer:
</span>
<br />
712,603,632
<br />
<br />
<br />
<br />
</p>
|
