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First Day WORKSHOP ALA: Pre-Algebra Unit 1 Whole Numbers

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You be the judge! TRUE or FALSE?

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5 > 3

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4 < 4

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Population of Missouri > Population of Illinois 12,830,6325,988,927

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Number of chickens in the world < Number of people in the world

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Number of chickens in the world < Number of people in the world 19,000,000,000 7,035,000,000

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IMPORTANT WORDS

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SUM: the answer you get when you add 4 + 7 = 11

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FACTORS: numbers that get multiplied 4 x 7 = 28

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PRODUCT: the answer you get when you multiply 4 x 7 = 28

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DIFFERENCE: the answer you get when you subtract 7 - 4 = 3

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QUOTIENT: the answer you get when you divide 8 ÷ 4 = 2

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EXPONENTS 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5 5858

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5252 5252 25

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2323 2323 8 8

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1515 1515 1 1

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4242 4242 16

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Heart AttackParentheses Head InjuryExponents LaborMultiply/Divide Cut FingerAdd/Subtract A Story to Introduce Order of Operations -- Cut finger -- Head injury -- Heart attack -- Labor

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PLEASE EXCUSE MY DEAR AUNT SALLY

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10 + 3 x 2 16

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10 – 3 + 2 9 9

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(7 – 4) 2 9 9

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3(7 – 2) 2 75

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1 + 3(7 – 2) 2 76

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OUR HERO ZERO HERO 0

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8674 + 0 8674 ZERO IS THE ADDITIVE IDENTITY. ADDING ZERO TO A NUMBER DOES NOT CHANGE THE NUMBER.

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8674 - 0 8674

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8674 X 0 0 0 WHEN YOU MULTIPLY BY 0, YOU ALWAYS GET 0.

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8674 ÷ 0 UNDEFINED DON’T DO IT!

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FACTORS AND MULTIPLES FACTORS OF 10: MULTIPLES OF 10: 2 X 51 X 10 10, 20, 30, 40, 50,...

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FACTORS AND MULTIPLES FACTORS OF 2: MULTIPLES OF 2: 2, 4, 6, 8, 10, 12,... 1 X 2 Multiples of 2 are called EVEN numbers! 2 is a PRIME number. Its only factors are 1 and itself.

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FACTORS AND MULTIPLES FACTORS OF 6: MULTIPLES OF 6: 2 X 3 1 X 6 6, 12, 18, 24, 30,... 6 is a COMPOSITE number. It has more factors than just 1 and itself.

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FACTORS AND MULTIPLES FACTORS OF 20: MULTIPLES OF 20: 2 X 105 X 4 20, 40, 60, 80, 100,... 1 X 20

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Which numbers are PRIME? 2 1 5 9 12 3 21 11 13 6 7 8 15 17 10

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Which numbers are PRIME? 2 1 5 9 12 3 21 11 13 6 7 8 15 17 10

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Which numbers are COMPOSITE? 2 1 5 9 12 3 21 11 13 6 7 8 15 17 10

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Which numbers are COMPOSITE? 2 1 5 9 12 3 21 11 13 6 7 8 15 17 10

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Which numbers are neither PRIME nor COMPOSITE? 2 1 5 9 12 3 21 11 13 6 7 8 15 17 10

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Which numbers are neither PRIME nor COMPOSITE? 2 1 5 9 12 3 21 11 13 6 7 8 15 17 10

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Which numbers are EVEN? 2 1 5 9 12 3 21 11 13 6 7 8 15 17 10

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Which numbers are EVEN? 2 1 5 9 12 3 21 11 13 6 7 8 15 17 10

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Which numbers are MULTIPLES of 3? 2 1 5 9 12 3 21 11 13 6 7 8 15 17 10

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Which numbers are MULTIPLES of 3? 2 1 5 9 12 3 21 11 13 6 7 8 15 17 10

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Which numbers are DIVISIBLE by 5? 2 1 5 9 12 3 21 11 13 6 7 8 15 17 10

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Which numbers are DIVISIBLE by 5? 2 1 5 9 12 3 21 11 13 6 7 8 15 17 10

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FACTOR TREES : breaking a number down to its PRIME factors

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Make a Factor Tree to break the number 100 into its prime factors

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MEAN, MEDIAN, and MODE

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How many children do you have?

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MEAN It’s MEAN to make you find the MEAN! You have to add, then divide!

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MEDIAN The median strip is the middle of the road. Write the numbers in order and pick the middle one!

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MODE The MOST POPULAR number!

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MILITARY TIME

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midnight 1:00 AM 2:00 AM 3:00 AM 4:00 AM 5:00 AM 6:00 AM 7:00 AM 8:00 AM 9:00 AM 10:00 AM 11:00 AM 12:00 NOON 1:00 PM 2:00 PM 3:00 PM 4:00 PM 5:00 PM 6:00 PM 7:00 PM 8:00 PM 9:00 PM 10:00 PM 11:00 PM 0000 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300

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1632 4:32 PM

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0448 4:48 AM

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7:58 PM 1958

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Resources: Picture Picture on slide 2 Man is available in the public domain under CC0 Public Domain; Color changed from original work. Picture on slide 8 members is available in the public domain under CC0 Public Domain; Word bubbles added. Picture on slide 14 PSM V78 D337 Archimedes is available in the public domain Pictures on slide 19 MASH Cast 1977 is available in the public domain DECONference triage tag by Steve Mann is licensed under CC BY-SA 3.0 Picture on slide 20 Dame Edna by Eva Rinaldi is licensed under CC BY-SA 2.0 Clip Art on slide 26 Hero is available in the public domain under CC0 Public Domain; Text added. Clip Art on slide 30 No admittance sign, created by Stephen Almond, is licensed under CC BY-SA 3.0 Clipart on slide 47 Christree by Christreat is licensed under CC BY-SA 4.0 Picture on slide 50 My dogs 2 is available in the public domain ManCC0 Public Domain membersCC0 Public Domain PSM V78 D337 Archimedes MASH Cast 1977 DECONference triage tagCC BY-SA 3.0 Dame EdnaEva RinaldiCC BY-SA 2.0 HeroCC0 Public Domain No admittance signCC BY-SA 3.0 ChristreeCC BY-SA 4.0 My dogs 2

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Resources (cont.) Picture on slide 51 Angry Child by Gerry Thomasen is licensed under CC BY 2.0 Picture on slide 52 Controlled-Access Highway by Haljackey is licensed under CC BY-SA 3.0 Picture on slide 53 Angelina Jolie Brad Pitt Cannes by Georges Biard is licensed under CC BY-SA 3.0 Angry ChildGerry ThomasenCC BY 2.0 Controlled-Access HighwayHaljackeyCC BY-SA 3.0 Angelina Jolie Brad Pitt CannesCC BY-SA 3.0 MoHealthWINs This workforce solution was funded by a grant awarded by the U.S. Department of Labor’s Employment and Training Administration. The solution was created by the grantee and does not necessarily reflect the official position of the U.S. Department of Labor. The Department of Labor makes no guarantees, warranties, or assurances of any kind, express or implied, with respect to such information, including any information on linked sites and including, but not limited to, accuracy of the information or its completeness, timeliness, usefulness, adequacy, continued availability, or ownership. Unless otherwise noted this MoHealthWINs material by St. Louis Community College is licensed under a Creative Commons Attribution 4.0 International License.St. Louis Community College Creative Commons Attribution 4.0 International License

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