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5 Minute Check

5 Minute Check. Use the rainbow factor or the factor tree method to find the following. GCF 1. 45, 75 2. 123, 205 3. 459, 378 LCM 4. 12, 15. 5 Minute Check. Use the rainbow factor or the factor tree method to find the following. GCF 1. 45, 75. 5 Minute Check.

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5 Minute Check

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  1. 5 Minute Check Use the rainbow factor or the factor tree method to find the following. GCF 1. 45, 75 2. 123, 205 3. 459, 378 LCM 4. 12, 15

  2. 5 Minute Check Use the rainbow factor or the factor tree method to find the following. GCF 1. 45, 75

  3. 5 Minute Check Use the rainbow factor or the factor tree method to find the following. GCF 1. 45, 75 GCF = 3 x 5 = 15 45 75 / \ / \ 15 3 25 / \ / \ 355 5

  4. 5 Minute Check Use the rainbow factor or the factor tree method to find the following. GCF 2. 123, 205

  5. 5 Minute Check 123 205 / \ / \ 3 41 5 41 Use the rainbow factor or the factor tree method to find the following. GCF 2. 123, 205 GCF = 41

  6. 5 Minute Check Use the rainbow factor or the factor tree method to find the following. GCF 3. 459, 378

  7. 5 Minute Check Use the rainbow factor or the factor tree method to find the following. GCF 3. 459, 378 GCF = 3 x 3 x 3 = 27 459 378 / \ / \ 3 153 2 189 / \ / \ 3 51 3 63 / \ / \ 3 17 3 21 / \ 3 7

  8. 5 Minute Check Use the rainbow factor or the factor tree method to find the following. LCM 4. 12, 15 12 15 / \ / \ 2 6 3 5 / \ 2 3

  9. 5 Minute Check Use the rainbow factor or the factor tree method to find the following. LCM 4. 12, 15 LCM = 2 x 2 x 3 x 5 = 60

  10. Flashcards

  11. Monday, April 7 Chapter 1 Review

  12. Chapter 1 Review 1. The ratio of cats to dogs seen by a veterinarian in one day is 2 to 5. If a vet saw 40 dogs in one day, how many cats did he see? A. 5 C. 29 B. 16 D. 40

  13. Chapter 1 Review 1. The ratio of cats to dogs seen by a veterinarian in one day is 2 to 5. If a vet saw 40 dogs in one day, how many cats did he see? Method 1 2catsx cats 5 dogs = 40 dogs 2 x 40 ÷ 5 = 16 cats Answer: B

  14. Chapter 1 Review 1. The ratio of cats to dogs seen by a veterinarian in one day is 2 to 5. If a vet saw 40 dogs in one day, how many cats did he see? Method 2 5 dogs2.5 dogs 2 cats = 1 cat 40 ÷ 2.5 = 16 cats

  15. Chapter 1 Review 2. At a sports camp, there is one counselor for every 12 campers. If there are 156 campers attending the camp, which equivalent ratios could be used to find the number of counselors?

  16. Chapter 1 Review 2. At a sports camp, there is one counselor for every 12 campers. If there are 156 campers attending the camp, which equivalent ratios could be used to find the number of counselors? 1 counselor x counselors 12 campers = 156 campers

  17. Chapter 1 Review 2. At a sports camp, there is one counselor for every 12 campers. If there are 156 campers attending the camp, which equivalent ratios could be used to find the number of counselors? 1 x 2 x 12 = 156 or 24 = 156 Answer: G

  18. Chapter 1 Review 3. GRIDDED RESPONSE A car jack requires a force of 110 pounds to lift a 2,500-pound car. In simplest form, what is the ratio of the car’s weight to the force required to lift the car?

  19. Chapter 1 Review 3. GRIDDED RESPONSE A car jack requires a force of 110 pounds to lift a 2,500-pound car. In simplest form, what is the ratio of the car’s weight to the force required to lift the car? Car’s weight Lift

  20. Chapter 1 Review 3. GRIDDED RESPONSE A car jack requires a force of 110 pounds to lift a 2,500-pound car. In simplest form, what is the ratio of the car’s weight to the force required to lift the car? Car’s weight2,500 lbs Lift 110 lbs

  21. Chapter 1 Review 3. GRIDDED RESPONSE A car jack requires a force of 110 pounds to lift a 2,500-pound car. In simplest form, what is the ratio of the car’s weight to the force required to lift the car? Car’s weight2,500lbs250 Lift 110lbs= 11

  22. Chapter 1 Review 4. A baker is making an oversized sheet cake for a school dance. The recipe calls for 2 cups of sugar for every 3 cups of flour. How many cups of flour are needed, if she is using 18 cups of sugar. A. 27 cups B. 18 cups C. 9 cups D. 6 cups

  23. Chapter 1 Review 4. A baker is making an oversized sheet cake for a school dance. The recipe calls for 2 cups of sugar for every 3 cups of flour. How many cups of flour are needed, if she is using 18 cups of sugar. A. 27 cups B. 18 cups C. 9 cups D. 6 cups Can we get rid of any answers?

  24. Chapter 1 Review 4. A baker is making an oversized sheet cake for a school dance. The recipe calls for 2 cups of sugar for every 3 cups of flour. How many cups of flour are needed, if she is using 18 cups of sugar. A. 27 cups B. 18 cups C. 9 cups D. 6 cups Can we get rid of any answers?

  25. Chapter 1 Review 4. A baker is making an oversized sheet cake for a school dance. The recipe calls for 2 cups of sugar for every 3 cups of flour. How many cups of flour are needed, if she is using 18 cups of sugar. 2 cups sugar18 cups sugar 3 cups flour = x cups flour 3 x 18 ÷ 2 = 27 cups flour Answer: A

  26. Chapter 1 Review 5. Which rate gives the best price for scrapbook paper? F. Sale A G. Sale B H. Sale C I. Sale D

  27. Chapter 1 Review 5. Which rate gives the best price for scrapbook paper? 10 sheets $2

  28. Chapter 1 Review 5. Which rate gives the best price for scrapbook paper? 10 sheets5 sheets $2 = $1

  29. Chapter 1 Review 5. Which rate gives the best price for scrapbook paper? 10 sheets5 sheets $2 = $1 6 sheets $.60

  30. Chapter 1 Review 5. Which rate gives the best price for scrapbook paper? 10 sheets5 sheets $2 = $1 6 sheets10 sheets $.60 =$1

  31. Chapter 1 Review 5. Which rate gives the best price for scrapbook paper? 10 sheets5 sheets $2 = $1 6 sheets10 sheets $.60 =$1 5 sheets $1

  32. Chapter 1 Review 5. Which rate gives the best price for scrapbook paper? 10 sheets5 sheets $2 = $1 6 sheets10 sheets $.60 =$1 5 sheets $1 3 sheets $.60

  33. Chapter 1 Review 5. Which rate gives the best price for scrapbook paper? 10 sheets5 sheets $2 = $1 6 sheets10 sheets $.60 =$1 5 sheets $1 3 sheets5 sheets $.60 = $1

  34. Chapter 1 Review 5. Which rate gives the best price for scrapbook paper? 10 sheets5 sheets $2 = $1 6 sheets10 sheets $.60 =$1 5 sheets $1 3 sheets5 sheetsAnswer: G $.60 = $1

  35. Chapter 1 Review 6. Which of the following ratios is equivalent to ? A. B. C. D.

  36. Chapter 1 Review 6. Which of the following ratios is equivalent to ? = .71428 A. = .83333 B. = .6 C. = .88235 D. = .71428

  37. Chapter 1 Review 7. The table shows the cups of whole wheat flour required to make dog biscuits. How many cups of whole wheat flour are required to make 35 biscuits?

  38. Chapter 1 Review 7. The table shows the cups of whole wheat flour required to make dog biscuits. How many cups of whole wheat flour are required to make 35 biscuits? 10 biscuits 35 biscuits 2 cups flour = x cups flour 2 x 35 ÷ 10 = 7 cups

  39. Chapter 1 Review 8. A school population was predicted to increase by 50 students a year for the next 10 years. If the current population is 700 students, what will be the enrollment after 10 years? F. 50 students H. 1,200 students G. 500 students I. 7,000 students

  40. Chapter 1 Review 8. A school population was predicted to increase by 50 students a year for the next 10 years. If the current population is 700 students, what will be the enrollment after 10 years? F. 50 students H. 1,200 students G. 500 students I. 7,000 students Can we get rid of any answers?

  41. Chapter 1 Review 8. A school population was predicted to increase by 50 students a year for the next 10 years. If the current population is 700 students, what will be the enrollment after 10 years? F. 50 students H. 1,200 students G. 500 students I. 7,000 students Can we get rid of any answers?

  42. Chapter 1 Review 8. A school population was predicted to increase by 50 students a year for the next 10 years. If the current population is 700 students, what will be the enrollment after 10 years? 700 students + 50 a year x 10 years = 1200 students

  43. Chapter 1 Review 8. A school population was predicted to increase by 50 students a year for the next 10 years. If the current population is 700 students, what will be the enrollment after 10 years? 700 750 – year 1 1000 – year 6 800 – year 2 1050 – year 7 850 – year 3 1100 – year 8 900 – year 4 1150 – year 9 950 – year 5 1200 – year 10

  44. Chapter 1 Review 9. SHORT RESPONSE There are 12 boys and 15 girls in your class. Four new students, 3 boys and 1 girl, join your class. Compare the ratio of boys to girls before and after the new students enrolled.

  45. Chapter 1 Review 9. SHORT RESPONSE There are 12 boys and 15 girls in your class. Four new students, 3 boys and 1 girl, join your class. Compare the ratio of boys to girls before and after the new students enrolled. old Boys124 Girls 15 = 5 = .8 new Boys15 Girls 16 = .9375 The ratio did not stay the same.

  46. Chapter 1 Review 10. The table shows the cost of different kinds of fruit. To the nearest cent, what is the cost of 3.5 pounds of grapes? A. $2.84 C. $3.50 B. $2.88 D. $3.63

  47. Chapter 1 Review 10. The table shows the cost of different kinds of fruit. To the nearest cent, what is the cost of 3.5 pounds of grapes? $1 $ x 1 lb = 3.5 lbs 1 x 3.5 ÷ 1 = $3.50 Answer: C

  48. Chapter 1 Review 11.GRIDDED RESPONSE Mr. Reinard bought 5 pounds of feed for his chickens for $10. How much did the feed cost per pound in dollars?

  49. Chapter 1 Review 11.GRIDDED RESPONSE Mr. Reinard bought 5 pounds of feed for his chickens for $10. How much did the feed cost per pound in dollars? $10 $ x 5 lbs feed = 1 lb feed 10 x 1 ÷ 5 = $2 per lb feed

  50. Chapter 1 Review 12. SHORT RESPONSE The length of a track around a football field is mile. How many miles do you walk if you walk 2 times around the track?

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