place value tells us what value each number has because of its place or position in any number
TRANSCRIPT
Place value tells us what value each number has because of
its place or position in any number.
Each digit in a number has a place value.
In the number 4856, the digit 4 is in the thousands place value.
Meaning the place value is thousands.
4856
Place value is thousands
Digits
All numbers are made from digits.
Each digit in its right place gives
a number its value
What are the digits?
3 4 1 8 9 0 5 6 7 2
So lets try that out.1 4 6
How do you know the value of this number?
1 4 6
Each digit has a place.
Each place has a value.
H T U
Saying it out loud
one hundred and forty six gives a clue.
100 40 6
Another way of showing
Place Value is to use an abacus
10010
10
10
10
1
1
1
1
1
1
H T U
146
One hundred and forty six
Important Point: “ Make sure that the students understand that a “wall” dividing two houses in a number is indicated by a ‘comma’. The ‘comma’ tells that the number to the ‘left’ of the ‘comma’ is in different house or a period.”
THOUSANDS
MILLIONS
UNITSones, tens, hundreds
A place value chart helps us to read and understand large
numbers.
I have 1 hundred and 1 ten. What number am I?
I have 1 hundred and 1 ten. What number am I?
1 hundred 1 ten 0 ones
I have 1 hundred and 1 ten. What number am I?
1 1 0
When writing numbers in words you write exactly what you say:
409 320 199 Four hundred nine million, three
hundred twenty thousand, one hundred ninety-nine
1. Two hundred sixty four thousand, five hundred three
2. Ninety million, sixty-two thousand four3. Seven hundred five million, twenty-two4. Five hundred sixty-three thousand, four
hundred thirteen5. Two billion, three hundred million, seven
thousand, sixteen
When numbers are presented in numerical digits, it is called the standard form of a number.
4856
Standard Form
Numbers can also be represented in expanded form.
This means writing the value of a number using place value of each digit.
The number 4856 in expanded form is: 4000 + 800 + 50 + 6
4,367 4,000 + 300 + 60 + 7
14,371,024fourteen million, three hundred andseventy-one thousand and twenty-four
1,43,71,024One crore, forty three lac, seventy-one thousand and twenty-four
Place Value!!