This document contains a math lesson on exponents and powers of ten. It includes an assignment to complete set 47 of odd numbered problems, examples of exponent rules and operations with scientific notation, and exercises to write numbers in standard and expanded notation and solve for missing exponents.

1. lesson 47.notebook January 28, 2013
Assignment:
1-->Set 47 (odds) - Due Wednesday [1/30]

2. lesson 47.notebook January 28, 2013
Lesson 47 Warm-Up:
1) Solve: 10 2.5
12 a
2) Write 37 1/2% as a decimal.
3) Write 1/11 as a decimal with a bar over the repetend.
4) Compare: 0.6 0.6
5) Two and three hundredths is how much less than three and two
tenths?

3. lesson 47.notebook January 28, 2013
Lesson 47:
FYI...
102 x 103 =
106 103 =
(103)4 =
SO....Rules of exponents -
x y x+y
1 a a =a
ax = ax - y
2 y
a
x y (x)(y)
3 (a ) = a

4. lesson 47.notebook January 28, 2013
Lesson 47 Examples:
A) Write 456 in expanded notation using powers of 10.
Simplify.
B) 24.25 x 103
C) 25 x 106
D) 12.5 103
E) 4.8 104

5. lesson 47.notebook January 28, 2013
Find each missing exponent.
F) 103 x 104 = 10
G) 108 102 = 10
H) (104)2 = 10
I) n3 x n4 = n

6. lesson 47.notebook January 28, 2013
Write each of the following numbers in standard form.
J) 2 1/2 million
K) 15 billion
L) 1.6 trillion