Download presentation
Presentation is loading. Please wait.
1
Exponents
3
4 Exponent 3 Base Base - the repeated factor; the Big, Bottom number; the only number you may write as a factor. tells you how many times to use the base as a repeated factor. Exponent-
4
What an Exponent Represents
4 3 = 3 x 3 x 3 x 3 exponential form product of repeated (equal) factors (expanded form)
5
three to the fourth power
How to read an Exponent 4 3 three to the fourth power
6
three to the 3rd power or three cubed
2 three to the 2nd power or three squared 3 3 three to the 3rd power or three cubed
7
2 6 7 8 2 5 3 4 eight squared two cubed six to the fifth power
Read These Exponents 2 2 6 5 7 8 3 4 eight squared two cubed six to the fifth power seven to the fourth power
8
What is the Exponent? 2 x 2 x 2 = 3 2 2 3 x 3 = 3 4 5 x 5 x 5 x 5 = 5
9
What is the Base and the Exponent?
4 8·8·8·8 = 8 7·7·7·7·7 = 7 5 9 2 9·9 =
10
How to evaluate an exponent by multiplying out.
4 3 = 3 x 3 x 3 x 3 9 27 81
11
2 16 4 = Evaluate: 3 2 9 = 4 16 2 = 3 125 5 =
12
1 raised to any power will always be 1.
A Few to Memorize!!! 1 raised to any power will always be 1. 3 1 1 = 1 = 1 15 1,309 = 1
13
5 = 1 1 8 = 1 23 = Any number raised to the
power of zero will always be one. 5 = 1 1 8 = 1 23 =
14
16 8 4 2 1 Proof: 2 = 2³ = 2² = 2¹ = 2° = See a pattern?
How does that work? Proof: 2 = 2³ = 2² = 2¹ = 2° = 16 8 4 See a pattern? 2 1
15
5 = 5 15 = 15 8 = 8 Any number raised to the
power of one will always be itself. 5 = 1 5 1 15 = 15 1 8 = 8
16
Base 10 An exponential expression with a base of ten can be evaluated by writing the number 1 followed by a number of zeros that match the exponent. 2 = 100 10 5 = 100,000 10
17
area = length x width A pool is a rectangle Length = 30 ft.
Exponents Are Often Used in Area Problems to Show the units Are Squared area = length x width A pool is a rectangle Length = 30 ft. Width = 15 ft. A = 30ft x 15ft = 450 ft 15ft. 30ft 2
18
Volume = length x width x height A box is a rectangle Length = 10 cm
Exponents Are Often Used in Volume Problems to Show the units Are Cubed Volume = length x width x height A box is a rectangle Length = 10 cm Width = 10 cm Height = 20 cm Volume = 10cm x 10cm x 20cm = 2,000 cm 20 10 10 3
19
Here Are Some Areas Change Them to Exponents
2 40 feet squared = 40 ft 56 sq. inches = 56 in 38 m squared = 38 m 56 sq. cm = 56 cm 2 2 2
20
Here Are Some Volumes Change Them to Exponents
3 30 feet cubed = 30 ft 26 cu. inches = 26 in 44 m cubed = 44 m 56 cu. cm = 56 cm 3 3 3
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.