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Lesson 6-6 Pages 293-297

Lesson 6-6 Pages 293-297. Finding Percent of a Number. Lesson Check 6-5. What you will learn!. How to find percent of a number by multiplying. How to estimate with percents. Vocabulary. What you really need to know!.

michael-middleton
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Lesson 6-6 Pages 293-297

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  1. Lesson 6-6Pages 293-297 Finding Percent of a Number Lesson Check 6-5

  2. What you will learn! • How to find percent of a number by multiplying. • How to estimate with percents.

  3. Vocabulary

  4. What you really need to know! When working with common percents like 10%, 25%, 40%, and 50%, it may be helpful to use the fraction form of the percent.

  5. What you really need to know! The word “ of ”means you should multiply!

  6. What you really need to know!

  7. What you really need to know! Page 293 100% = 1

  8. Example 1: Find 50% of 46. 50% = ½ ½ x 46 = 23

  9. Example 2: Find 25% of 88. 25% = ¼ ¼ x 88 = 22

  10. Example 3: 70% = x 110 = 77 Find 70% of 110.

  11. Example 4a: Estimate: 22% of 494 20% of 500 Since 20% is 1/5 1/5 x 500 = 100

  12. Example 4b: Estimate: 63% of 788 60% of 800 Since 60% is 3/5 3/5 x 800 = 480

  13. Example 4c: Estimate: ¼ % of 1,219 ¼% is ¼ x 1% 1% of 1,200 = 12 ¼ x 12 = 3

  14. Example 4d: Estimate: 155 % of 38 150% of 40 1.5 x 40 40 + 20 = 60

  15. Example 5: A restaurant bill totals $21.35. You want to leave a 15% tip. What is a reasonable amount for the tip?

  16. $21.35 is about $21.00 15% is 10% + 5% 10% of $21 is $2.10 5% of $21 is $1.05 $2.10 + $1.05 = $3.15 $3 would be reasonable.

  17. Page 295 Guided Practice #’s 4-12

  18. Read: Pages 293-295 with someone at home and study examples!

  19. Homework: Pages 296-297 #’s 14-36 even, 40, 42 #’s 45-66 Lesson Check 6-6

  20. Page 738 Lesson 6-6

  21. Lesson Check 6-6

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