7) Use a place value chart to solve. Then, write your answer in standard form. 15 and 2 tenths 9 thousandths + 2 and 3 hundredths 2 thousandths =

Transcription

1 Decimal Operations Addition Classwork Solve the following problems: PMI 5 th Grade, Unit 2 Decimal Computation 1) = 4) = 2) = 5) = 3) = 6) = 7) Use a place value chart to solve. Then, write your answer in standard form. 15 and 2 tenths 9 thousandths + 2 and 3 hundredths 2 thousandths = 8) Estimate the sum of NJ Center for Teaching and Learning ~ 1 ~

2 Homework Solve the following problems: 9) = 12) = 10) = 13) = 11) = 14) = 15) Use a place value chart to solve. Then, write your answer in standard form. 1 hundred 4 tens and 9 tenths 8 hundredths 7 thousandths + 21 and 4 hundredths 8 thousandths = 16) Estimate the sum of NJ Center for Teaching and Learning ~ 2 ~

3 Decimal Operations Subtraction Classwork Solve the following problems: 17) = 20) = 18) = 21) = 19) = 22) = 23) Use a place value chart to solve. Then, write your answer in standard form. 8 tenths 6 thousandths 4 hundredths 3 thousandths = 24) Estimate the difference of NJ Center for Teaching and Learning ~ 3 ~

4 Homework Solve the following problems: 25) = 28) = 26) = 29) = 27) = 30) = 31) Use a place value chart to solve. Then, write your answer in standard form. 64 and 8 tenths 4 and 27 hundredths = 32) Estimate the difference of NJ Center for Teaching and Learning ~ 4 ~

5 Multiplication Review Classwork Solve the following problems: 33) 53 x 4 = 36) 4,302 x 6 = 34) 682 x 7 = 37) 5,002 x 4 = 35) 926 x 5 = 38) 73 x 23 = 39) Use an area model to show the product of 65 x 28. Write your answer in standard form. 40) Estimate the product of 88 and 30 = NJ Center for Teaching and Learning ~ 5 ~

6 Classwork Solve the following problems: 41) 67 x 8 = 44) 5,302 x 3= 42) 742 x 5 = 45) 7,811 x 7 = 43) 803 x 6 = 46) 45 x 62 = 47) Use an area model to show the product of 81 x 37. Write your answer in standard form. 48) Estimate the product of 72 and 40. NJ Center for Teaching and Learning ~ 6 ~

7 Decimal Operations Multiplication Classwork Solve the following problems: 49) x 2 = 52) x 0.03 = 50) 1.47 x 3 = 53) x 4 = 51) 67.4 x 0.04 = 54) 54.6 x 2.3 = 55) Use an area model to show the product of 43.1 x 6. Write your answer in standard form. 56) Estimate the product of x 3.8. NJ Center for Teaching and Learning ~ 7 ~

8 Homework Solve the following problems: 57) x 3 = 60) x 4 = 58) 19.4 x 0.7 = 61) x = 59) 6.74 x 0.04 = 62) 0.74 x 41 = 63) Use an area model to show the product of 8 x Write your answer in standard form. 64) Estimate the product of 931 x NJ Center for Teaching and Learning ~ 8 ~

9 Real Life Applications Classwork 65) You purchased $21.87 in groceries at a store. How much change will you get if you pay with a $50 bill? 66) If an eight foot piece of wood has a length of 2.25 feet cut from it, what is the length of the piece of wood that is left? 67) At a track meet, the times for four runners in a 100 yard dash are 9.72 sec,10.08 sec, 8.88 sec and 9.5 sec. What is the winning time? Explain your answer. 68) The college student studied for 2.25 hours a day for 4 days. How many hours did she study during that time? 69) Carpet is on sale for $11.25 a square yard. If you buy 50 square yards, how much will it cost? NJ Center for Teaching and Learning ~ 9 ~

10 Homework 70) At a gymnastics competition, Sally scored points and Suzy scored points. How much higher is Suzy s score than Sally s? 71) A diver s scores at a diving competition were 9.25, 6.85, 8.5 and What was his total score? 72) Frank saved $ in July and $ in August. Then, he bought a bike for $ How much money did he have left? 73) Two babies were 6.3 lbs and 7.45 lbs. when they were born. What is their combined weight? 74) A maple tree is 12.4 feet tall. A dogwood tree is 7.2 feet shorter than the maple tree. What are their combined heights? NJ Center for Teaching and Learning ~ 10 ~

11 Decimal Computation Unit Review Multiple Choice Questions 75) = a b c d ) = a b c d. 6, ) = 78) = a. 425 b c d a b..077 c. 7.7 d ) = a b. 55 c d ) = a b c d NJ Center for Teaching and Learning ~ 11 ~

12 81) = a. 58 b c. 57 d ) = a. 19 b c d ) = 84) = 85) 9.67 x 4 = 86) x 9 = a b. 55 c. 54 d a b c d..03 a b c d a. 29,601 b c d. 2, ) x 0.89 = a. 153 b c. 15,323,308 d NJ Center for Teaching and Learning ~ 12 ~

13 88) 5.3 x 5.3 = 89).04 x.051 = a b. 2,809 c d ) = a. 204 b c d a. 3,275 b c. 3 d ) Michelle pays $20.55 for her dinner and offers to pay John s dinner bill as well. If John s dinner cost $15.78, how much did Michelle spend at dinner time? a. $40.00 b. $4.77 c. $3.33 d. $ ) Lou weighed 225 pounds in October. He lost 50 pounds in November, 23.6 pounds in December, and 5.8 pounds in January. How much does Lou now weigh? a pounds b pounds c pounds d pounds 93) It snowed 1.5 inches Monday and 0.79 inches on Tuesday. How much did it snow after both days? a. 229 inches b inches c inches d inches NJ Center for Teaching and Learning ~ 13 ~

14 94) Juan has $1,000 in the bank. He buys a computer for $500 and a book for $15. How much money is in his bank account after his shopping trip? a. $450 b. $485 c. $584 d. $ ) The store sells oranges for $2.18. If Neil buys 5 oranges, how much money will he spend? a. $10.90 b. $109 c. $19 d. $10.09 Short Constructed Response Questions 96) Estimate the product for 56 x 33 97) Estimate the product for 45.4 x ) Estimate the product for 99 x ) Estimate the product for 10.1 x ) Find the sum of ) Find the sum of ) Find the sum of ) Find the difference of ) Find the difference of ) Find the difference of NJ Center for Teaching and Learning ~ 14 ~

15 Extended Constructed Response Questions 106) a. Write down a number that has a tens, ones, tenths, hundredths and thousandths place. b. Add to it. c. Subtract.003 from that answer. d. Multiply that number by 4. e. Write out your final number in words. NJ Center for Teaching and Learning ~ 15 ~

16 107) Three friends are having ice cream together: Rosanna, Jose and Thomas. Use the ice cream menu shown below to answer the questions. Sweet Shop Menu Ice Cream Flavors Cost Vanilla $1.99 Chocolate $1.50 Strawberry $1.25 Rocky Road $2.50 Toppings Cost Sprinkles $0.25 Walnuts $0.75 Whipped Cream $0.50 When they put all their cash together, the three friends have a total of $ They decide that each person will order a cone with one ice cream flavor and one topping. They agree that each order will costs at least $1.00, but no more than $3.00. a. Determine three different cones that the friends could order. b. After totaling all three amounts, what will their change be? c. Could they afford to buy their friend Danielle an ice cream cone with a topping with their change? NJ Center for Teaching and Learning ~ 16 ~

17 CW-HW Answer Key 1) ) 8.6 3) ) ) ) ) ) 8 9) ) ) ) ) ) ) ) 94 17) ) ) ) ) ) ) ) 7 25) ) ) ) ) ) ) ) 2 33) ) ) ) 25,812 37) 20,008 38) 1,679 39) 1,820 40) 2,700 41) ) 3,710 43) 4,818 44) 15,906 45) 54,677 46) 2,790 47) 2,997 48) 2,800 49) ) ) ) ) ) ) ) 8 57) ) ) ) ) ) ) ) 2,700 65) $ ) 5.75 feet 67) 8.88 sec 68) 9 hours 69) $ ) ) ) $ ) lbs 74) 19.6 feet Unit Review Answer Key 75) a 76) a 77) d 78) b 79) c 80) c 81) b 82) d 83) a 84) b 85) a 86) c 87) b 88) d 89) b 90) b 91) d 92) d 93) c 94) b 95) d 96) 1,800 97) ) 2,000 99) ) ) ) ) ) 4 105) ) answers will vary 107) answers will vary NJ Center for Teaching and Learning ~ 17 ~