Get papers sit down get out homework quietly

Get papers sit down get out homework &quietly work on bellringer Solve -4^2 (-2)^3 (-3)^4

Solve -4^2 -16 (-2)^3 -8 (-3)^4 81

Get papers sit down get out homework &quietly work on bellringer Solve -2^2 (-2)^4 (-3)^3

Solve -2^2 -4 (-2)^4 16 (-3)^3 -27

Prime Factorization 2 -2

http: //www. brainpop. com/math/n umbersandoperations/factoring/ u Brainpop - Factoring video. . Answer the questions

http: //www. brainpop. com/math/numbersandoperations/factoring/quiz/ Answers: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. C D B A A D C B C A

Factor The numbers that are multiplied to get a product 15 = 3 x 5 3 and 5 are factors of 15 3 x 2 =6 3 & 2 are factors of 6 2 x 9 = 18 2 & 9 are factors of 18

Prime Number is a counting number that only has two factors, itself and one. One is not a prime 7 is a prime 5 is a prime

Composite Number Counting numbers which have more than two factors (such as six, whose factors are 1, 2, 3 and 6) One is not a composite 55 is a composite 8 is a composite

A Rhyme to Help Us Remember Prime number What do you see? I see no other factors Except for one and me. Composite number What do you see? I see at least three factors Including one and me.

All of the orange numbers on this chart are prime. Write them down. Refer to them so you don’t waste time trying to factor them. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

Prime Factorization When a composite number is written as a product of all of its prime factors Using the Factor Tree 78 / 2 x 39 / / 2 x 3 x 13

Let’s Try a Factor Tree! 84 / 2 x 42 / / 2 x 21 / / / 2 x 2 3 x 7

Factor Trees do not look the same for the same number, but the final answer is the same. 72 / 8 x 9 / 2 x 4 x 3 x 3 / 2 x 2 x 3 x 3 72 / 2 x 36 / / 2 x 18 / / / 2 x 2 x 9 / / 2 x 2 x 3 x 3

Greatest Common Factor The largest common factor of 2 or more numbers Use prime factorization or ladder to find GCF of 24 and 36 Is 12 GCF of 72 and 84 Is 12

Prime Factorization is helpful for finding greatest common factors. 72 / 8 x 9 / 2 x 4 x 3 x 3 / 2 x 2 x 3 x 3 Take the common prime factors of each number and multiply to find the greatest common factor. 84 / 2 x 42 / / 2 x 21 / / / 2 x 2 3 x 7 2 x 3 = 12

Least Common Multiple The smallest product that both numbers have in common LCM of 4 & 10 is 20 LCM of 5 & 7 Is 35 LCM of 12 & 15 Is 60

Use the Ladder for LCM, GCF and Simplifying Fractions WRITE the two 2 72 84 numbers on one line. 2 36 42 DRAW THE L SHAPE DIVIDE out common 3 18 21 prime numbers 6 starting with the 7 smallest LCM = 2 2 3 6 7 = 504 LCM makes an L: GCF = 2 2 3 = 12 72 6 Simplified fraction is on the bottom = 84 7 GCF is down the left side:

Use the Ladder for LCM, GCF and Simplifying Fractions WRITE the two 2 24 36 numbers on one line. DRAW THE L SHAPE 2 12 18 DIVIDE out common 3 6 9 prime numbers starting with the 2 3 smallest LCM = 2 2 3 = 72 LCM makes an L: GCF = 2 2 3 = 12 24 2 Simplified fraction is on the bottom = 36 3 GCF is down the left side:

Use the Ladder for LCM, GCF and Simplifying Fractions WRITE the two 3 6 numbers on one line. DRAW THE L SHAPE 2 DIVIDE out common prime numbers starting with the smallest LCM = 3 2 3 = 18 LCM makes an L: GCF is down the left side: GCF = 3 Simplified fraction is on the bottom 6 9 9 3 2 = 3

Use the Ladder for LCM, GCF and Simplifying Fractions WRITE the two 5 1 numbers on one line. DRAW THE L SHAPE 5 DIVIDE out common prime numbers starting with the smallest LCM = 5 x 7 = 35 LCM makes an L: GCF is down the left side: GCF = 1 Simplified fraction is on the bottom 7 7 5 = 7

HOMEWORK u PG 77 4 – 40 evens only 8 -16 use ladder 26 -32 use factor trees 34 -40 use ladder method

HOMEWORK u Ps 2 -2 evens only 2 -14 ladder 20 -26 factor tree use exponents 28 -34 ladder

Resources u Brain Pop – Prime Factors - Prime Numbers - Exponents

Interactive Practice for Factor Trees 1. 2. 3. Virtual Manipulatives Interactive Practice 1 Interactive Practice from Math. Playground. com

The Birthday Cake Method a. k. a. The Box Method An alternative to factor trees A video from You. Tube

Challenge Problem u Use what you know about multiplying whole numbers by variables and exponents to make a factor tree for the following monomial 9 3 4 5 3 45 x 3 3 x 5 xx x

A Random Thought about Prime Numbers Brought to you from You. Tube. com

Use the Ladder for LCM, GCF and Simplifying Fractions WRITE the two 2 24 36 numbers on one line. DRAW THE L SHAPE 2 12 18 DIVIDE out common 3 6 9 prime numbers starting with the 2 3 smallest LCM = 2 2 3 = 72 LCM makes an L: GCF = 2 2 3 = 12 24 2 Simplified fraction is on the bottom = 36 3 GCF is down the left side:

Big Rocks Quiz tomorrow – Decimal rules #1 Four Sight paper Homework Practice sheet 2 -1 evens only