Interactive Math Note Book

Exponents

Exponents Homework page 1

• Write each expression in exponential form1. 8x8x8 2. 7x73. 4x4x4x4 4. 5x5x5x5x5Find each value5. 42 6. 33

7. 54

8. At Russell’s school one person will contact 4 people and each of those people will contact 4 others, and so on. How many people will be contacted in the 5th round?

Exponents page 2

• What is an exponent?

• What is exponential form?

• An exponent tells how many times a number is multiplied by itself.

base->73<- exponent

73=7x7x7=343• A number is written in

exponential form when the number or base is written with an exponent.

Exponents page 2 continued

• What is the exponential form of 4x4x4?

• What is the exponential form of 9x9x9x9x9?

• What is the value of the exponential form 37?

• Answer:43

• Answer:95

• Answer:3x3x3x3x3x3x3=2,187

Exponents Page 3

• Do now• Put these into exponential form and solve1. 4x4x42. 3x3x3x33. 5x5x5x5

Exponents page 4

• How do you use a tree diagram with exponents?

• A tree diagram is used when dealing with word problems and exponents

• Ex: A secretary calls 3 families. Then each family calls 3 other families, and so on. How many families will be notified during the 6th round

• 1st round is the exponent 1, 3 families are called the base 3 which give us 31

• Every family calls 3 so the base the round we want is 6 so the exponential number is

36=729