Transcript Understanding Place Value

Number
Sense
Third
Grade
Count, read, and write
whole numbers to 10,000.
Number
Sense
Third
Grade
Identify the place value for
each digit in numbers to 10,000
OBJECTIVES
Be able to read numbers to hundred
thousand
Be able to identify the place value of each
digit in numbers up to one hundred
thousand
Know how to write a number in word form
VOCABULARY
Digits – numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Place value – tells you how much each digit
stands for
Periods – A group of 3 places used for the
digits in large numbers. Periods are usually
separated by commas.
UNDERSTANDING PLACE VALUE
1 ten is 10 times 1
one
10
1
UNDERSTANDING PLACE VALUE
1 hundred
is
10 times 1
ten
100
10
UNDERSTANDING PLACE VALUE
1 thousand is 10 times 1 hundred
1,000
100
UNDERSTANDING PLACE VALUE
10 thousand is 10 times 1 thousand
10,000
1,000
UNDERSTANDING PLACE VALUE
100 thousand is 10 times _____?
10,000
100,000
10,000
Ones
Thousands
NUMBERS ARE DIVIDED INTO
PERIODS
690,492
Periods are separated by commas.
REMEMBER THAT EACH PERIOD HAS
THREE PLACE VALUES WITHIN THE PERIOD
Thousands
Ones
6 9 0, 4 9 2
WHAT DIGIT IS IN THE HUNDRED’S PLACE?
Thousands
Ones
6 9 0, 4 1 2
4
WHAT DIGIT IS IN THE TEN THOUSAND’S PLACE?
Thousands
Ones
6 9 0, 4 1 2
9
WHAT DIGIT IS IN THE THOUSAND’S PLACE?
Thousands
Ones
6 9 0, 4 1 2
0
WHAT DIGIT IS IN THE HUNDRED THOUSAND’S PLACE?
Thousands
Ones
6 9 0, 4 1 2
6
WHAT DIGIT IS IN THE HUNDRED’S PLACE?
7 4 3, 9 8 2
9
WHAT DIGIT IS IN THE TEN THOUSAND’S PLACE?
7 4 3, 9 8 2
4
WHAT DIGIT IS IN THE THOUSAND’S PLACE?
7 4 3, 9 8 2
3
WHAT DIGIT IS IN THE HUNDRED THOUSAND’S PLACE?
7 4 3, 9 8 2
7
WHAT IS THE VALUE OF THE UNDERLINED DIGIT?
7 4 3, 9 8 2
Ten thousand
WHAT IS THE VALUE OF THE UNDERLINED DIGIT?
7 4 3, 9 8 2
Thousand
WHAT IS THE VALUE OF THE UNDERLINED DIGIT?
7 4 3, 9 8 2
Hundred thousand
WHAT IS THE VALUE OF THE UNDERLINED DIGIT?
7 4 3, 9 8 2
Hundred
WHAT IS THE VALUE OF THE UNDERLINED DIGIT?
7 4 3, 9 8 2
Eighty
WHAT IS THE VALUE OF THE UNDERLINED DIGIT?
7 4 3, 9 8 2
Two
HOW TO READ LARGE NUMBERS
Ones
Thousand
Read the numbers before the comma as if
you were reading in the one’s column.
Say the period you are in when you get to
the comma except for the one’s period.
690,492
TIP
Do not use “and” when reading whole
numbers. The word “and” will be used
when you are reading numbers with
decimals.
690,492
Six hundred and ninety-thousand,
and four hundred and ninety-two.
READ THIS NUMBER
133,472
One hundred thirty-three thousand,
four hundred seventy-two
READ THIS NUMBER
643,582
Six hundred forty-three thousand,
five hundred eighty-two
READ THIS NUMBER
54,931
Fifty-four thousand,
nine hundred thirty-one
READ THIS NUMBER
530,801
Five hundred thirty thousand,
eight hundred one
READ THIS NUMBER
4,268
Four thousand,
two hundred sixty-eight
READ THIS NUMBER
305,108
Three hundred five thousand,
one hundred eight
CREDITS
Illustrations from:
Clipart from ClickArt 125,000 Deluxe
Image Pak, T/Maker Co., Broderbund
Software, Inc.