Successfully reported this slideshow.
Upcoming SlideShare
×

# 2nd9 interim review pp

442 views

Published on

Published in: Education
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

• Be the first to like this

### 2nd9 interim review pp

1. 1. Interim Review 12/16/09
2. 2. <ul><li>What is the difference between a prime number and a composite number? Give 3 examples of each. </li></ul>
3. 3. <ul><li>What is the divisibility rule for the following numbers… </li></ul><ul><ul><ul><li>3 4 </li></ul></ul></ul><ul><ul><ul><li>5 6 9 10 </li></ul></ul></ul>
4. 4. <ul><li>What is prime factorization? Write the prime factorization of each of the following numbers… </li></ul><ul><li>36 54 99 </li></ul>
5. 5. <ul><ul><li>Define FACTORS : whole numbers that are multiplied to find a product (answer) </li></ul></ul><ul><ul><li>For example: 2x3=6… therefore 2 and 3 are factors of 6 </li></ul></ul>
6. 6. <ul><li>What does Greatest Common Factor mean? </li></ul>
7. 7. <ul><li>The greatest common factor of two or more numbers is the greatest number that is a factor of every number </li></ul>
8. 8. <ul><li>Find the GCF of 18 and 36 </li></ul>
9. 9. 1. Make a list to find the GCF of 18 and 30 18: 1, 2, 3, 6, 9, 18 30: 1, 2, 3, 5, 6, 10, 15, 30 THE GCF of 18 and 30 is 6.
10. 10. <ul><li>What does Least Common Multiple mean? </li></ul>
11. 11. A Multiple of a number is the product of that number and a nonzero whole number. 2 x 1 = 2 2 x 2 = 4 2 x 3 = 6 2, 4, 6 are multiples of 2.
12. 12. <ul><li>Find the LCM of: </li></ul><ul><li>12 and 24 </li></ul>
13. 13. METHOD 1 Make a list of the first few multiples of each number. The smallest number on both (all) lists is the LCM. 12 – 12, 24, 36, 48, 60 24 – 24, 48, 72, 96, 120
14. 14. What is the difference between an improper fraction and a mixed number? GIVE 3 EXAMPLES OF EACH
15. 15. <ul><li>How can I add and subtract fractions with like denominators? </li></ul>
16. 16. <ul><li>What does Least Common Denominator mean? </li></ul><ul><li>What do you need to add and subtract fractions? </li></ul>
17. 17. <ul><li>How do you regroup mixed numbers for subtraction? </li></ul><ul><li>6 and 5/12 – 2 and 7/12= </li></ul><ul><li>7 and 2/3 – 2 and 5/6 = </li></ul>
18. 18. <ul><li>How do you multiply fractions? </li></ul>
19. 19. <ul><li>How do you divide fractions? </li></ul>
20. 20. <ul><li>What is a ratio? </li></ul><ul><li>Write 3 equivalent ratios to ⅖ </li></ul>
21. 21. <ul><li>Solve the following proportions… </li></ul><ul><li>6/14 = A/7 5/A = 7/77 </li></ul>
22. 22. <ul><li>What is a percent? </li></ul><ul><li>Write the following percentages as fractions in simplest form… 25% 45% 90% </li></ul>
23. 23. <ul><li>How do I change a percent to a decimal? </li></ul><ul><li>Change the following percents to decimals… </li></ul><ul><li>7% 22% 60% 70.4% </li></ul>
24. 24. <ul><li>How do I change a decimal to a percent? </li></ul><ul><li>Change the following decimals to percents… </li></ul><ul><li>.18 .008 .2 .143 </li></ul>
25. 25. <ul><li>Solve the equation: x + 2/3 = 5 1/3 </li></ul>
26. 26. <ul><li>In the sixth grade band there are 5 trumpet players for every 3 flute players. If there are 24 flute players, how many trumpet players are there? </li></ul>
27. 27. <ul><li>A designer used 36 feet of ribbon to trim 24 chairs. How much ribbon does the designer need to trim 6 more chairs? </li></ul>
28. 28. <ul><li>Kevin has read 55% of a book. If there were 240 pages in the book, how many pages has he read? </li></ul>
29. 29. <ul><li>Maria bought a shirt for \$40, jeans for \$55, and a purse for \$19. The sales tax is 6%. What is the total cost including sales tax? </li></ul>
30. 30. <ul><li>Of the 65 athletes at the state track finals, 10 were from Gwinnett County. About what percent of the athletes were not from Gwinnett County? </li></ul>
31. 31. <ul><li>Of the 20 people Dylan invited to his party, 8 came wearing blue jeans. Write a proportion that would be used in determining the percentage of people who wore blue jeans? </li></ul>
32. 32. <ul><li>Adam kept a table of his earnings for his summer job. Use the table to determine how much he was paid for working 17 hours. </li></ul><ul><li>Hours worked Salary </li></ul><ul><li>2 \$15 </li></ul><ul><li>4 \$30 </li></ul><ul><li>6 \$45 </li></ul>
33. 33. <ul><li>Jasmyn’s and Kristy’s mom baked a pizza. If Jasmyn ate 1/6 of the pizza and Kristy ate 2/5 of the pizza, how much did they eat together? </li></ul>
34. 34. <ul><li>John, Sue, and their friends baked a giant cookie. John ate 5/18 of the cookie, Sue ate 1/3 of the cookie, and their friend, ate 2/9 of it. How much of the cookie was eaten? </li></ul>