Transcript 1-2 Place Value Through the Millions

© 2007 M. Tallman
Digits – numbers 0, 1, 2, 3, 4,
5, 6, 7, 8, 9
© 2007 M. Tallman
Standard form – a number written
with one digit for each place value.
123,789
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739,512
739,512
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Period- each group of three
digits in a place value chart.
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Periods – A group of 3 places used for the digits in large
numbers. Periods are usually separated by commas.
Millions
Thousands
Ones
785,632,901
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Thousands
Millions
Ones
Millions
Thousands
Ones
785,632,901
© 2007 M. Tallman
Thousands
Millions
Ones
785,632,901
© 2007 M. Tallman
Place value – tells you how
much each digit stands for.
© 2007 M. Tallman
Millions
Thousands
Ones
Hundred
Ten
Ones
Hundred
Ten
Ones
Hundred
Ten
Units
Place- each period has three places
785,632,901
© 2007 M. Tallman
Millions
Thousands
Ones
Hundred
Ten
Ones
Hundred
Ten
Ones
Hundred
Ten
Units
Ten
Thousand
Hundred
Hundred
Tens
Thousand
(One)
Ten
Thousand
Million
(One)
Million
785,632,901
© 2007 M. Tallman
Millions
Thousands
Ones
Hundred
Ten
Ones
Hundred
Ten
Ones
Hundred
Ten
Units
(One)
Million
Hundred
Hundred
Million
Ten
Thousand
Ten
Hundred
Thousand
(One)
Thousand
785,632,901
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478,603,574
TensMillion
Hundred
Hundred
Ten
Thousand
© 2007 M. Tallman
Millions
Thousands
Ones
Hundred
Ten
Ones
Hundred
Ten
Ones
Hundred
Ten
Units
Value- the product of a digit
multiplied by its place.
785,632,901
© 2007 M. Tallman
Millions
Thousands
Ones
Hundred
Ten
Ones
Hundred
Ten
Ones
Hundred
Ten
Units
30,000
700,000,000
600,000
0
785,632,901
© 2007 M. Tallman
Millions
Thousands
Ones
Hundred
Ten
Ones
Hundred
Ten
Ones
Hundred
Ten
Units
2,000
30,000
900
80,000,000
785,632,901
© 2007 M. Tallman
What is the place and value of the underlined digit?
Number
Place
Value
5,362
hundreds
300
277,052
hundred thousands
200,000
338
tens
30
5,790,293
(one) millions
5,000,000
78,997,545
ten millions
70,000,000
97,857
ten thousands
90,000
© 2007 M. Tallman
Expanded form – A way to write
numbers that shows the place
value of each digit.
100,000 + 20,000 + 3,000 + 700 + 9 = 123, 709
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What is the value of each digit?
104,367
100,000 + 4,000 + 300 + 60 + 7
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What is the value of each digit?
3 76, 541
300,000 + 70,000 + 6,000 + 500 + 40 + 1
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100,000 + 4,000 + 300 + 60 + 7
1 0 4,3 6 7
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Line up the places and add for standard form.
300,000 + 70,000 + 6,000 + 500 + 40 + 1
300,000
70,000
6,000
500
40
1
+
3 76, 541
© 2007 M. Tallman
Word form – A number written in words.
123, 789
one hundred twenty-three thousand,
seven hundred eighty-nine
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712,986,503
seven hundred twelve million,
nine hundred eighty-six thousand,
five hundred three
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356,147,964
three hundred fifty-six million,
one hundred forty-seven thousand,
nine hundred sixty-four
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93,621,845
ninety-three million,
six hundred twenty-one thousand,
eight hundred forty-five
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531,938
five hundred thirty-one thousand,
nine hundred thirty-eight
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Short word form – A number written
with a combination of numbers and
words.
256 million, 173 thousand,720
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712,986,503
712 million, 986 thousand, 503
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356,147,964
356 million, 147 thousand, 964
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93,621,845
93 million, 621 thousand, 845
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531,938
531 thousand, 938
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Million
Thousand
One
Hundred
Ten
Ones
Hundred
Ten
Ones
Hundred
Ten
Units
Read the numbers before the comma as if you were
reading in the one’s period.
Say the period you are in when you get to the comma
except for the one’s period.
642,790,158
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Do not use “and” when reading whole
numbers. The word “and” will be used
when you are reading numbers with
decimals.
721,356
Seven hundred and twenty-one thousand,
and three hundred and fifty-six.
© 2007 M. Tallman