Download Section 1.1 - TopCatMath

Math 005 - Cooley
Practical Math
OCC
Section 1.1 – Understanding Whole Numbers
Place-Value System
3
0
9
Ones
5
Tens
7
Hundreds
Ones
6
Ones
8
Tens
2
Ones
Hundreds
1
Tens
Thousands
Hundreds
Millions
Ones
Tens
Hundreds
Billions
Ones
Tens
Hundreds
Trillions
 Example: The number 128,675,309.
The digit 1 is in the hundred millions place.
The digit 2 is in the ten millions place.
The digit 8 is in the millions place.
The digit 6 is in the hundred thousands place.
The digit 7 is in the ten thousands place.
The digit 5 is in the thousands place.
The digit 3 is in the hundreds place.
The digit 0 is in the tens place.
The digit 9 is in the ones place.
128 , 6 7 5 , 30 9
Millions Thousands
Ones
 Exercises:
1)
In the number 97,615,348:
a) In what place is the digit 1?
b) In what place is the digit 3?
c) In what place is the digit 9?
2)
Write the number 9,256 in expanded notation.
3)
Write the number 654,321 in expanded notation.
4)
Write the number 500 + 40 + 8 in standard notation.
5)
Write the number 700,000 + 5,000 + 300 + 8 in standard notation.
6)
Write a word name for the number 54,378
7)
Write a word name for the number 213,468
8)
Write the number two hundred million, forty-six thousand, eight in standard notation.
-1-