Interactive Math Note Book

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Presentation transcript:

Interactive Math Note Book Exponents

Exponents Homework page 1 Write each expression in exponential form 8x8x8 2. 7x7 4x4x4x4 4. 5x5x5x5x5 Find each value 5. 42 6. 33 54 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 solve 4x4x4 3x3x3x3 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