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Tutorial1

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• Can we assume Kim did better than Brad because she got more questions right even though there were different amounts of questions on the tests? ? 100 is an easy number to work with. If we compare the two test scores out of parts per 100 then we can compare them evenly.
• Can we assume Kim did better than Brad because she got more questions right even though there were different amounts of questions on the tests? ? 100 is an easy number to work with. If we compare the two test scores out of parts per 100 then we can compare them evenly.
• Can we assume Kim did better than Brad because she got more questions right even though there were different amounts of questions on the tests? ? 100 is an easy number to work with. If we compare the two test scores out of parts per 100 then we can compare them evenly.
• Can we assume Kim did better than Brad because she got more questions right even though there were different amounts of questions on the tests? ? 100 is an easy number to work with. If we compare the two test scores out of parts per 100 then we can compare them evenly.
• Transcript of "Tutorial1"

1. 1. Percentage Basics & Introduction- By Kari Knisely
2. 2. What you will learn… Where percents come from What percents are What percents look like Common percentages used in everyday life Why we use percents
3. 3. Where Percents Come From Italian roots most commonly assumed
5. 5. What Percents are & Basic Info Converts any quantity into a part of 100 to easily compare
6. 6. What is a Percent? Per cent Per 100 ÷ 100 %= parts per 100
7. 7. Percents as FractionsSteps2.Percentage number becomes numerator3.Denominator becomes 1004.Remove the percent sign5.Simplify 75 75 25 375 % 100 100 25 4 75 % 3 4
8. 8. Percents as DecimalsSteps2.Move decimal 2 places left3.Remove the percent sign4.Re-write decimal75 % 75.0 % 75.0 %   0.75
9. 9. Is more than 100% possible? 200%
10. 10. Is more than 100% possible? 175% 75%
11. 11. What does a percent look like? %
12. 12. What does a percent look like?
13. 13. What does a percent look like? 40 Test Questions = 100% = 1.0
14. 14. What does a percent look like? 40 Test Questions = 100% = 1.0 50% 50% 20 ?s 20 ?s 0.50 0.50
15. 15. What does a percent look like? 40 Test Questions = 100% = 1.0 25% 25% 10 ?s 10 ?s 0.25 0.25 25% 25% 10 ?s 10 ?s 0.25 0.25
16. 16. What does a percent look like? 40 Test Questions = 100% = 1.0 12.5% 12.5% 5 ?s 5 ?s 12.5% 0.125 0.125 12.5% 5 ?s 5 ?s 0.125 0.125 12.5% 12.5% 5 ?s 5 ?s 0.125 12.5% 12.5% 0.125 5 ?s 5 ?s 0.125 0.125
17. 17. Common Percentage Types Discounts & Sales Tips Taxes
18. 18. Common Percentage Types
19. 19. Common Percentage Types Calculate
20. 20. Common Percentage Types Calculate
21. 21. Common Percentage Types
22. 22. Common Percentage TypesCalculate
23. 23. Common Percentage TypesCalculate
24. 24. Common Percentage Types
25. 25. Common Percentage Types Original \$24.99 Discount - 7.50 Sale Price \$17.49 FL Tax Rate 6% = ?Calculate
26. 26. Common Percentage Types Original \$24.99 Discount - 7.50 Sale Price \$17.49 FL Tax Rate 6% = ?Calculate
27. 27. Why do we use percents? Compare different quantities
28. 28. Why do we use percents?Brad’s Math Test Kim’s Science Test45 questions correct 52 questions correctIF 50 questions total IF 60 questions total
29. 29. Why do we use percents? 45 ?s If 50 total ?s0 ?s 12.5 ?s 25 ?s 37.5 ?s 50 ?s0% 25% 50% 75% 100% ≈ 90% Brad’s Math Test 45 questions correct IF 50 questions total
30. 30. Why do we use percents? Kim’s Science Test 52 questions correct IF 60 questions total 52 ?s If 60 total ?so ?s 15 ?s 30 ?s 45 ?s 60 ?s0% 25% 50% 75% 100% ≈ 87%
31. 31. Why do we use percents? 45 ?s If 50 total ?s0 ?s 12.5 ?s 25 ?s 37.5 ?s 50 ?s0% 25% 50% 75% 100% ≈ 90% 52 ?s If 60 total ?s o ?s 15 ?s 30 ?s 45 ?s 60 ?s 0% 25% 50% 75% 100% ≈ 87%
32. 32. Why do we use percents?Brad’s Math Test Kim’s Science Test45 questions correct 52 questions correctIF 50 questions total IF 60 questions total = 90% = 87%
33. 33. Why do we use percents?Brad’s Math Test Kim’s Science Test16 questions correct 16 questions correctIF 20 questions total IF 24 questions total
34. 34. Why do we use percents? 16 ?s If 20 total ?s0 ?s 5 ?s 10 ?s 15 ?s 20 ?s0% 25% 50% 75% 100% ≈ 80% Brad’s Math Test 16 questions correct IF 20 questions total
35. 35. Why do we use percents? Kim’s Science Test 16 questions correct IF 24 questions total 16 ?s If 24 total ?so ?s 6 ?s 12 ?s 18 ?s 24 ?s0% 25% 50% 75% 100% ≈ 65%
36. 36. Why do we use percents? 16 ?s If 20 total ?s0 ?s 5 ?s 10 ?s 15 ?s 20 ?s0% 25% 50% 75% 100% ≈ 80% 16 ?s If 24 total ?s o ?s 6 ?s 12 ?s 18 ?s 24 ?s 0% 25% 50% 75% 100% ≈ 65%
37. 37. Why do we use percents?Brad’s Math Test Kim’s Science Test16 questions correct 16 questions correctIF 20 questions total IF 24 questions total ≈ 80% ≈ 65%
38. 38. What you have learned… Where percents come from What percents are What percents look like Common percentages used in everyday life Why we use percents