Exponents.notebook
September 13, 2012
Warm­up
1. 672 = 21f
2. 12 = y ÷ 12
3. g ÷ 52 = 18
4. 43h = 817
1
Exponents.notebook
September 13, 2012
Exponents exponent ­ tells how many times to use base as a factor.
4
ex. 5 4 is the exponent and tells you to multiply 5 four times.
base ­ is the number that is multiplied as many times as the exponent. Power ­ a number that can be expressed using an exponent. 2
Exponents.notebook
September 13, 2012
Using exponents
Writing exponents
3 x 3 x 3 x 3
base is number you see
exponent is how many times you see base
Practice
a. 3.94 x 3.94
b. 7 x 7 x 7 x 7
c. a x a x a
d. 4 x 4 x 4 3
Exponents.notebook
September 13, 2012
Expanded form using powers of 10
9,572
a. 55,607
b. 380,254
4
Exponents.notebook
September 13, 2012
Simplify Exponents
2
5
1. Identify base
2. Multiply base the number of times of exponent
Practice
3
4
1.5
3
10
5
5
Exponents.notebook
September 13, 2012
Using in Order of Operations
2
3 x (7 + 18 ÷ 2)
3
2 ­ 6 ÷ 3
6