Lesson 1 — Activity 2: Place Value
Completion requirements
Lesson 1 — Activity 2:
Place Value
Place value is important when dealing with any numbers. So, what is
place value?
Place
value
is the
value
of a number based on the position in that number.
For example, the $100 bill contains place values. The "1" in "100" is in the hundreds place, the first "0" is in the tens place, and the last "0" is in the ones place.
Think about it!
The numbers below represent money, and you have to make a choice. Which of these would you choose if you were going on a shopping spree?
$4 $400 $40,000 $ 4,000,000
A quick look at the amounts of money in the box above shows the flexibility of our number system. Putting the same number (4) in another column changes the amount of money from four dollars ($4) to four million dollars ($4,000,000). If you were going on a shopping spree, you would probably want $4,000,000 to spend rather than $4!
Here is an example of the different place values:
Remember!
The table below shows how the
value
of a number changes based on the place
value
of the
column
in which it is placed. Note the names at the top of the columns.
|
Amount
|
Thousands | Hundreds | Tens | Ones |
| $4,526 | 4 | 5 | 2 | 6 |
| $3,024 | 3 | 0 | 2 | 4 |
| $7,800 | 7 | 8 | 0 | 0 |
The table below shows another way to show the real value of each number based on the column it is in.
|
Amount
|
Thousands
|
Hundreds |
Tens
|
Ones |
| $4,526 | 4000 | 500 | 20 | 6 |
| $3,024 | 3000 | 0 | 20 | 4 |
| $7,800 | 7000 | 800 | 0 | 0 |