Sewanhaka High School
Mrs. Lidowsky, Principal
Math 8
Mr. Long, Teacher
Period:______________
Date:________________________
Name:___________________________________
H.W. #3: Ditto
DO-NOW #3: Evaluate
1) 93 * 9 =
2a) 23 . 24 =
2b) x2 . x4 =
2c) 3x2 . 4x4 =
3) At the grocery store, Karen was comparing the unit price for two different packages of laundry detergent.
Tide laundry detergent was $0.0733 per ounce. Arm and Hammer laundry detergent was $3.64 for 52
ounces. Which package had the lower unit price? Explain.
Topic: Algebra
Main Idea: Laws of Exponents involving Division
Aim:
RECALL
How many times as many
apples did the tree grow on
Thursday as compared to
Tuesday?
Copy the problem, 9 x 9 =
81 over in factor form using
only 3 as your factor and
then underneath that answer
copy the problem over again
in exponential form using 3
as your base?
What’s the rule for
multiplying two or more
terms with the same base?
Multiplying exponents of the
same base involved adding
the exponents and
evaluating. What happens if
you have to divide
exponents of the same base?
What rule would you use?
NOTES
DAYS OF
WEEK
MONDAY
TUESDAY
WEDNESDAY
THURSDAY
FRIDAY
Factor
Form
Power of 3
(EXPONENTIAL FORM)
Value of
Power
RECALL
Evaluate:
NOTES
1) 26 =
2) 23 =
3) 26 ÷ 23 =
4) 38 ÷ 35 =
5) 25 / 23 =
6) 27 / 22 =
63m5 n 6
7)
=
27mn
8) x5 / x3 =
9) 12x5 / 4x3 =
10) 30x5y4 / 6x3y2 =
11) 24 / 24 =
12) 25 / 25 =
13) x5 / x5 =
14) 23 / 25 =
15) 22 / 26 =
What does 2 -3 mean?
Drill:
Directions: Evaluate:
1) ya ÷ yb =
2) (y4 * d8) ÷ (y2 * d6) =
3) 36 ÷ 36 =
4) 50
5) 24 / 24 =
6) 25 / 25 =
7) 23 ÷ 27 =
8) 5-2 =
SUMMARY:
If time:
Directions: Evaluate.
1) 35 =
2) 43 ÷ 45 =
3) 6-3 =