1. PLACE VALUE
The value of a number based on
its position

2. Value = what is a
number worth
Thousands Hundreds Tens Ones
3,459

3. Value = what is a
number worth
3,459
3,000 + 400 + 50 + 9

4. The Decimal
Separates the wholes from
the fractions
45.75
Whole Part

5. The Right of the
Decimal
5 6 7
10 100 1000
Tenths Hundredths Thousandths
3.567

6. Four Different Ways to
Write it!
Standard Form
Expanded Form
Expanded Form with Exponents
Word Form

7. Standard Form
2,403,354,240
Period-every
three digits
from right
to left

8. Expanded Form
2,000,000,000 + 400,000,000 +
3,000,000 + 300,000 + 50,000 +
4,000 + 200 + 40

9. Expanded Form with
Exponents
9 8 6 5
(2X10) + (4X10) + (3X10) + (3X10) +
4 3 2
(5X10) + (4x10) + (2X10) + (4X10)
Tells the number of zeros
when multiplying by
powers of 10

10. Word Form
Each period gets a comma
when you write it out
t wo billion, four hundred three
million, three hundred fifty-four
thousand, t wo hundred forty
Use a hyphen bet ween t wo digit words