Least Common Least Common MultipleMultiple

ProductProduct

The answer to a The answer to a multiplication problem.multiplication problem.

6 X 6 = 36

What is the product?What is the product?

7 X 8 = 56

MultipleMultiple

The product of a whole number The product of a whole number multiplied times any other whole multiplied times any other whole number.number.

Some multiples of 6 6, 12, 18, 24, 30, 36, 42

Name some multiples of Name some multiples of 55

5, 10, 15, 20, 25, 30, 35

Name some multiples of Name some multiples of 77

7, 14, 21, 28, 35, 42, 49

Name some multiples of Name some multiples of 44

4, 8, 12, 16, 20, 24, 28

Name some multiples of Name some multiples of 99

9, 18, 27, 36, 45, 54, 63

12/1/1112/1/11

Get out your homework.Get out your homework.

Bellringer:Bellringer: Divide WITHOUT A CALCULATOR!Divide WITHOUT A CALCULATOR!

35÷735÷7 -81 ÷ -9-81 ÷ -9 32 ÷ -832 ÷ -8

Homework AnswersHomework Answers

6. 26. 2

7. 47. 4

8. 108. 10

9. 49. 4

10. 1010. 10

Common MultipleCommon Multiple

A number that is a A number that is a multiple of two or more multiple of two or more numbers.numbers.

Some multiples of 3 & 6

6, 12, 18, 24, 30, 36, 42

What are some Common What are some Common Multiples for 2 & 8?Multiples for 2 & 8?

8, 16, 24, 32, 40, 48, 56

What are some Common What are some Common Multiples for 4 & 6?Multiples for 4 & 6?

12, 24, 36, 48, 56, 60

What are some Common What are some Common Multiples for 3 & 7?Multiples for 3 & 7?

21, 42, 63

What are some Common What are some Common Multiples for 5 & 10?Multiples for 5 & 10?

10, 20, 30, 40, 50, 60

Least Common MultipleLeast Common Multiple

The smallest common The smallest common multiple of a set of two or multiple of a set of two or more numbers.more numbers.

6 = 6, 12, 18, 24, 30, 36

5 = 5, 10, 15, 20, 25, 30

What is the Least What is the Least Common Multiple of 3 & Common Multiple of 3 &

88

8 = 8, 16, 24, 32, 40, 48 3 = 3, 6, 9, 12, 15, 21, 24

What is the Least What is the Least Common Multiple of 4 & Common Multiple of 4 &

88

8 = 8, 16, 24, 32, 40, 48 4 = 4, 8, 12, 16, 20, 24

What is the Least What is the Least Common Multiple of 6 & Common Multiple of 6 &

88

8 = 8, 16, 24, 32, 40, 48 6 = 6, 12, 18, 24, 30, 36

What is the Least What is the Least Common Multiple of 4 & Common Multiple of 4 &

1010

10 = 10, 20, 30, 40, 50, 4 = 4, 8, 12, 16, 20, 24

What is the Least What is the Least Common Multiple of 3 & Common Multiple of 3 &

99

9 = 9, 18, 27, 36, 45, 54 3 = 3, 6, 9, 12, 15, 21,

Example:Example:

Bob goes to the park every 3 days. Bob goes to the park every 3 days. Sally goes to the park every 9 days. Sally goes to the park every 9 days. Which days will they both be at the Which days will they both be at the park?park?

When is the soonest they will be in When is the soonest they will be in the park together? the park together?

WorksheetWorksheet

Icky Factor VideoIcky Factor Video

http://www.youtube.com/results?search_query=cyberchase+the+icky+factor&aq=f

12/2/1112/2/11

Test Today!Test Today!

Turn in your GCF and LCM worksheets!Turn in your GCF and LCM worksheets!

When you are finished with your test When you are finished with your test you have PAT:you have PAT: Make up workMake up work TessellationTessellation Study IslandStudy Island Computer GamesComputer Games