ADDITION AND SUBTRACTION

Transcription

1 LESSON ADDITION AND SUBTRACTION Add or subtract the numbers. Remember to regroup when necessary ,47 4,409 +, Calvin works at Rose Villa, a nursing home. At the monthly birthday party, he said, Happy Birthday, everyone, and then give the total age of all the residents celebrating birthdays. He listed the names and ages of all the residents on his floor: Mrs. Jones: ; Mrs. Taylor: 79; Mr. Scott: ; Mrs. Bailey: 94; Mrs. Rosen: 9; Mr. Walton: 4; Mrs. Garcia: ; Mr. Bitar: 90 What was the total age Calvin gave for these residents? a. 69 b. 69 c. 9 d. 69. At Sam s Sandwich Shop, Josie s manager printed 0 coupons to give to customers. Each customer got one coupon after buying a sandwich. At the end of the week, there were coupons left. How many customers left with a coupon?

2 LESSON 4 MULTIPLICATION AND DIVISION Multiply or divide the numbers g 96.,6. 7g g Lois is preparing a banquet room at the Sterling Hotel for a dinner party tonight. One of her tasks is to put fresh flowers into vases for the tables. There are tables and each table has a vase. She has a pail with 00 flowers and wants her to put an equal number of flowers in each vase. A. How many flowers will Lois put in each vase? a. b. c. d. 4 B. Are there any flowers left over? If so, how many?. Will assists a chef in a Mexican food restaurant. He is submitting an order to the food supply company for more taco shells for the next weeks. He knows that on average the restaurant goes through about soft shells per day and 7 hard shells. How many of each kind should he order? (Hint: There are 7 days in a week.) Soft shells: Hard shells:

3 LESSON ESTIMATION Estimate the following numbers.. Round 76 to the nearest hundred. a. 70 b. 700 c. 00 d Round,4 to the nearest thousand. a.,40 b.,000 c.,400 d.,00. Round to the nearest Round,7 to the nearest hundred. Round the numbers in the problems, then do the operation ,00 4, g Estimate to solve the problem. 9. Every year, the town of Westfield has a K race to raise money for child cancer patients. This year, the Westfield Animal Hospital will donate pencils, water bottles, stickers, and discount coupons to all runners. Eric is putting the items into gift bags for the runners. He has,00 pencils, 0 water bottles,,00 stickers, and 0 gift coupons. There are 9 runners. Estimate how many if each item Eric will put into each gift bag. Pencils: Water bottle: Stickers: Coupons:

4 LESSON 6 FRACTIONS Simplify these fractions.. 4 =. 49 =. 66 = 0 = =. Convert these mixed numbers to improper fractions. 6. = 7. 7 =. 9 4 = 9. 0 = 0. 7 = Convert these improper fractions to mixed numbers. 9. = 9 =. 4. = 4. 4 =. 7 = Add or subtract these fractions = 7. 4 =. 7 = = 0. 6 =. Ibrahim works in a furniture shop as an assistant learning how to work with wood. Emily Stern ordered a bookcase. She came into the shop to look at the plans and decided she wanted a smaller bookcase. Ibrahim suggested they reduce the measurements to of the amounts. Emily agreed. Complete the chart with of the measurement amounts. The first one is done for you. Bookcase for Emily Stern Current New Shelf length ft 4 ft Shelf width 4 ft Side height 4 4 ft Back height 4 ft Top length 4 ft 4

5 . Ivan works at Dalton Dry Cleaners, which also repairs clothing, shoes, and purses. Ivan has a leather cord that is 4 ft long. He needs ft of the leather cord for a purse strap. Ivan wants to know how much of the leather will be left after he cuts it. He needs 4 inches to use for a small bag. A. What does Ivan need to do to solve his problem? a. add 4 ft and 4 in b. add 4 ft and ft c. subtract ft from 4 ft d. subtract 4 in from ft B. What common denominator does Ivan use? a. 4 b. c. 0 d. C. Write Ivan s problem using a common denominator. D. Write Ivan s answer. E. Does Ivan have enough left for a 4 in cord? a. No. The amount < 4 in. b. Yes. The amount = 4 in. c. Yes. The amount > 4 in. F. What is Ivan s answer in inches? a. in b. 4 in c. 7 in d. in

6 LESSON 7 DECIMALS Perform the operation on the decimals = = = = = = = = 9. Ron and 4 coworkers have decided to order lunch today a sandwich with chips and a large drink. Ron will place the order and collect the money. His coworkers want to know how much it will cost each of them before they place the order. A sandwich with chips is $6.9 and a large drink is $.6. There is a $.0 delivery charge. A. First, Ron figures out that the total cost of the order, including the delivery charge, is B. What operation does Ron use to figure out how much each person owes? C. How much does each person need to pay? 0. You are shopping for a case of water and want to get the best deal. The AquaClear water costs $0.6 for 4 bottles. Another case, Spring Fresh, costs $.4 for bottles of water. A. What is the unit price of each bottle of AquaClear? B. What is the unit price of each bottle of Spring Fresh? C. Which case is the better deal? 6

7 LESSON PERCENTS Convert the percents to decimals and convert the decimals to fractions.. 6% =. % =. % = 4..4 =..0 = 6..9 = Find the percent of the amounts in the problems. 7. 0% of 60 =. % of 00 = 9. % of $ = 0. % of $0 =. 6% of $ =. % of 0 =. Esther works at Mattress World. She gets a % commission on each mattress she sells. She just sold a queen-sized mattress for $9. What is her commission? A. Your problem: B. Your answer: 4. Ali is a tailor. Most of his work is customers who want him to make their clothes bigger or smaller. Customers usually pick up their clothes three or four days after they drop them off. If a customer needs faster service, Ali adds a % charge. What is the charge for a customer who wants to pick up his suit tomorrow? The alterations are $4. 7

8 ANSWER KEY Lesson.,09., Lesson ,6., a.. (0 = ) R 6. 0 R 7. A. b. B. Yes, 4 flowers are left over. (00 = R4). Soft shells:,70 ( 4) Hard shells:,00 (7 4) Lesson. c.. b , = , ,000,000, Pencils: (,00 divided by 00 = R00) Water bottles: (00 divided by 00 = R00) Stickers: (,00 divided by 00 = R 00) Coupons: (400 divided by 00) Lesson = = = = = 0 Current New Shelf length ft 4 ft. A. c. B. d. C. 9 4 D. E. c. F. c. Lesson A. $46.0 ( $6.9 = 4.7; $.6 = $.; $4.7 + $. + $.0 = $46.0); B. division; C. $9.0 ($46.0 divided by = $9.0) 0. A. $0. ($0.6 divided by 4 = $0.); B. $0.4 ($.4 divided by = $0.4); C. AquaClear Lesson %. % 6. 9% $ 0. $4.40. $ A. 9. B. $ $.7 ($4. = $6.7; $4 + $6.7 = $.7) Shelf width 4 ft 7 ft Side height 4 4 ft ft Back height 4 ft ft Top length 4 ft ft