Smart to the Core - Grade 3 - Teacher Edition - Preview

SMART TO THE CORE Teacher’s Edition GRADE 3

Building Depth of Knowledge (DOK)

BOOKLET INCLUDES: Train the Brain Practice Drills - drills on the basic skills associated with each individual benchmark (DOK 1) Target Practice Activities - practice problems requiring the application of skills and real-world problem solving (DOK 2)

Think Tank Questions - non-routine task-based problem sets (DOK 3 and 4) Four-Star Challenge - assessments that measure students’ depth of knowledge including their ability to reason abstractly, create models, write arguments, and critique strategies Math Bootcamp - Teacher’s Edition (Grade 3) Publisher: Educational Bootcamp Content Development: Educational Bootcamp Senior Editor: Yasmin Malik Cover Design: Sadiq Malik Copyright © 2014 by J & J Educational Bootcamp Educational Bootcamp Sunrise, Florida 33351 All rights reserved. No part of this publication may be reproduced, transmitted, or stored in a retrieval system, in whole or in part, in any form or by any means, electronic or mechanical, including photocopying, recording, or otherwise, without written permission of Educational Bootcamp.

Printed in the United States of America

SMART TO THE CORE TABLE

OF

CONTENTS

Grade 3 CCSS Code

SMART TO THE CORE MISSIONS

FOUR−STAR CHALLENGE - SCORING RUBRIC

PAGE NUMBER 4

WARM UP - Five Day: Multiplication Warm-up

5—14

3.OA.1 (3.OA.1.1)

MISSION 1: Interpreting Products of Whole Numbers

15—24

3.OA.2 (3.OA.1.2)

MISSION 2: Interpreting Whole Number Quotients

25—34

3.OA.3 (3.OA.1.3)

MISSION 3: Multiplying and Dividing Within 100

35—44

3.O.A.4 (3.OA.1.4)

MISSION 4: Determining the Unknown Value in Equations

45—54

3.OA.5 (3.OA.2.5)

MISSION 5: Applying Properties of Operations

55—64

3.OA.6 (3.OA.2.6)

MISSION 6: Using Division as an Unknown Factor Problem

65—74

3.OA.7 (3.OA.3.7)

MISSION 7: Multiplying and Dividing Within 100

75—84

3.OA.8 (3.OA.4.8)

MISSION 8: Solving Two-Step Word Problems

85—94

3.OA.9 (3.OA.4.9)

MISSION 9: Identifying Patterns

95—104

3.NBT.1 (3.NBT.1.1)

MISSION 10: Rounding Whole Numbers

105—114

3.NBT.2 (3.NBT.1.2)

MISSION 11: Adding and Subtracting Whole Numbers

115—124

3.NBT.3 (3.NBT.1.3)

MISSION 12: Multiplying Whole Numbers by Multiples of 10

125—134

3.NF.1 (3.NF.1.1)

MISSION 13: Understanding Fractions

135—144

3.NF.2 (3.NF.1.2)

MISSION 14: Representing Fractions on a Number Line

145—154

3.NF.3 (3.NF.1.3)

MISSION 15: Understanding Equivalent Fractions

155—164

3.MD.1 (3.MD.1.1)

MISSION 16: Telling Time and Measuring Elapsed Time

165—174

3.MD.2 (3.MD.1.2)

MISSION 17: Measuring Liquid Volume and Mass

175—184

3.MD.3 (3.MD.2.3)

MISSION 18: Representing Data with Graphs

185—194

3.MD.4 (3.MD.2.4)

MISSION 19: Generating Measurements and Making Line Plots

195—204

3.MD.5 (3.MD.3.5)

MISSION 20: Understanding Concepts of Area Measurement

205—214

3.MD.6 (3.MD.3.6)

MISSION 21: Measuring Area by Counting Unit Squares

215—224

3.MD.7 (3.MD.3.7)

MISSION 22: Calculating Area

225—234

3.MD.8 (3.MD.4.8)

MISSION 23: Determining the Perimeter of a Polygon

235—244

3.G.1 (3.G.1.1)

MISSION 24: Classifying Shapes

245—254

3.G.2 (3.G.1.2)

MISSION 25: Partitioning Shapes into Equal Areas

255—264

PRACTICE DRILLS - Two-Minute Multiplication Drills ALL

Student Grids

265—266 267

It is highly recommended that the MATH POWER DRILL be used for direct instruction prior to having the students practice in the SMART TO THE CORE STUDENT BOOKLETS. As with the MATH POWER DRILL, each corresponding lesson increases in depth of knowledge (difficulty level) as you proceed through the Practice and Drills.

Lessons in the MATH POWER DRILL and SMART TO THE CORE STUDENT BOOKLETS labeled 1 indicate a review of the basic skills with simple application problems.

Lessons in the MATH POWER DRILL and SMART TO THE CORE STUDENT BOOKLETS labeled

2

indicate a slightly more difficult practice of basic skills with grade leveled

application practice problems.

Lessons in the MATH POWER DRILL and SMART TO THE CORE STUDENT BOOKLETS labeled 3 indicate extended and/or strategic-like problems.

We recommend that each targeted benchmark weakness be addressed over 4 one-hour sessions as follows:

Session 1 (one hour) Power Drill by Benchmark 1 (CD-Rom) Train the Brain Practice 1 (DOK 1) Target Practice 1 (DOK 2)

Session 2 (one hour) Power Drill by Benchmark 2 (CD-Rom) Train the Brain Practice 2 (DOK 1 and DOK 2) Target Practice 2 (DOK 2)

Session 3 (one hour) Power Drill by Benchmark 3 (CD-Rom) Train the Brain Practice 3 (DOK 3) Think Tank Question (DOK 3)

Session 4 (one hour) Four Star Challenge Assessment

INSTRUCTIONS FOR SCORING THE FOUR-STAR CHALLENGE (1) Multiple Choice Section: Assign one point to all multiple choice items answered correctly.

(2) Short Answer Section: Assign a maximum of two points.

2 POINTS - Complete correct response, including correct work shown and/or correct labels/units if called for in the item.

1 POINT - Partial correct response.

0 POINTS - No response, or the response is incorrect.

(3) Think Tank Section: Assign a maximum of four points.

4 POINTS - Shows complete understanding of the problem’s mathematical concepts and principles; uses appropriate mathematical terminology; and executes computations correctly and completely.

3 POINTS - Shows nearly complete understanding of the problem’s mathematical concepts and principles; uses mostly correct mathematical terminology; and computations are generally correct, but may contain minor errors.

2 POINTS - Shows some understanding of the problem’s mathematical concepts and principles; uses some correct mathematical terminology, and may contain major computational errors.

1 POINT - Shows limited to no understanding of the problem’s mathematical concepts and principles; may misuse or fail to use mathematical terminology, but attempts an answer.

0 POINTS - No answer attempted.

Intensive Basic Skills Math Strategies

Application of Strategies

Target for Enrichment

1

2

3

4

The student earns ONE star for correctly answering 49% or less.

The student earns TWO stars for correctly answering

The student earns THREE stars for correctly answering

The student earns FOUR stars for correctly answering 90 - 100%.

1

1

1

2

3

Tier 3 In need of Intensive

4

2

3

50 - 69%.

Tier 2 In need of Strategic

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4

2

3

4

70 - 89%.

Tier 1 * Proficient, but in need of

1

2

3

4

Tier 1 Proficient Target for Enrichment

MISSION 3: Multiplying and Dividing within 1-00 Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

Bootcamp STRATEGY 1: Draw arrays to represent word problems involving multiplication and division.

Example: A baker cut 4 cakes into 8 equal slices. How many slices of cake did the baker cut?

8

8

8

8

4 × 8 = 32 slices of cake

Bootcamp STRATEGY 2: Use key words to help create equations to represent word problems involving multiplication and division.

Example: Jamie baked 42 cookies to sell at a bake sale. She splits the cookies into packages of 7 cookies. How many packages of cookies does she have to sell?

KEY WORD MEANING

is

cut

times

each row

shared

each ____

split

Equals (=) Divide (÷) Multiply (×) Multiply (×)

Divide (÷)

Multiply (×)

Divide (÷)

42 cookies split into packages of 7.

42

÷

7

=

6

35 I Copying is strictly prohibited

TRAIN THE BRAIN PRACTICE 1 3.OA.3 (3.OA.1.3) DIRECTIONS: Underline the key words, and circle the numbers in the word problems.

Use the information to create and solve the multiplication equations.

1

Karla is baking cakes to give to her family as gifts. The cake recipe requires 2 eggs for every pound of flour. If Karla uses 10 pounds of flour, how many eggs will she need?

Answer: 20 eggs

2

Norris has 24 feet of painter’s tape and wants to cover some baseboards that require 6 feet of tape each. How many baseboards can he cover using the painter’s tape?

Answer: 4 baseboards

3

Phillip's display case has 10 shelves with 8 toy cars on each shelf. How many toy cars are in the display case?

Answer: 80 toy cars

4

Chloe has 54 movie tickets to give to 9 people. She wants to give each person the same number of tickets. How many tickets should she give each person?

Answer: 6 tickets

5

The dancers must practice a performance 7 times in an hour. If the dancers need to practice the performance 35 times before the show, how many hours do they need to practice?

Answer: 5 hours

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Target PRACTICE 1 1

3

Third grade students are gathering on a parade ground. The students stand in 5 rows. There are 6 students in each row. What multiplication sentence describes this array?

2

A a

5 × 2 = 10

A a

9

B a

6 × 6 = 36

B a

11

Ca

5 × 5 = 25

C

18

D

5 × 6 = 30

D a

81

For the party, Jessica buys 7 packs of spoons. Each pack contains 9 spoons.

If s is the total number of spoons she buys, select all the equations she can use to solve for s.

4

The equation 7+ 9 = s.

5

On Tuesday, Lee drove 9 miles. To reach his destination on Wednesday, he needs to drive double the number of miles he drove on Tuesday. How many miles does Lee need to drive on Wednesday?

Jerry needs to put 81 books on each of 9 shelves. He wants each shelf to have the same number of books. If b is the number of books he needs to put on each shelf, select all the equations he can use to solve for b.

The equation 7 − 9 = s.

✓ The equation b × 9 = 81.

The equation 81 + 9 = b.

✓ The equation 9 × 7 = s.

The equation 9 − 81 = b.

The equation 9  7= s.

The equation 9 + 7 = s.

✓ The equation 81  9 = b.

The equation 9 × 81 = b.

✓ The equation 7 × 9 = s.

The equation 81 × b = 9.

A dressmaker has 72 inches of ribbon. If she wants to cut the ribbon in 9-inch pieces, how many pieces of ribbon will she have? Grid your answer.

Gridded Answer: 8

6

Mimi uses 2 cups of flour to make 1 loaf of bread. If a bag of flour contains 10 cups, how many loaves of bread can she make? Grid your answer.

Gridded Answer: 5

37 I Copying is strictly prohibited

TRAIN THE BRAIN PRACTICE 2 3.OA.3 (3.OA.1.3) DIRECTIONS: Underline the key words, and circle the numbers in the word problems.

Use the information to create and solve the multiplication equations.

1

Mrs. Gonzalez gave each of her 4 daughters 7 books to read over the summer break.

How many books did they receive in all?

Answer: 28 books

2 There are 48 students attending a field trip to the nature park. Each minibus can hold 8 students. How many minibuses will be needed to transport the 48 students?

Answer: 6 minibuses

3

Vito bought 30 baseball cards to split between his 3 friends and himself. How many baseball cards will each of them get?

Answer: 10 baseball cards

4 A gift basket has 4 boxes of candy and 3 boxes of cookies inside. Monica buys 5 baskets for a gift giveaway. How many boxes of cookies were in all of the baskets?

Answer: 15 boxes of cookies

5 A corner store stocks 8 crates of bread. Each crate has 9 loaves of bread. How many loaves of bread does the corner store stock?

Answer: 72 loaves of bread

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Target PRACTICE 2 1

3

Neola arranged pictures on the table in 9 rows with 8 pictures in each row.

Which multiplication sentence below describes this array?

2

A a

8 × 8 = 64

A a

7

B a

9 × 9 = 81

B a

9

C

9 × 8 = 72

C

14

D a

8 × 2 = 16

D a

49

Jeremy bought 8 boxes of donuts. If each box contains 8 donuts, select all the statements that describe how many donuts Jeremy bought in all?

✓ There are more than 60 donuts in all. ✓ There are less than 70 donuts in all.

There are 72 donuts in all. ✓ There are 64 donuts in all.

There are 81 donuts in all.

4

Roland has 35 bricks. How many rows of 7 bricks can he make? Grid your answer.

Gridded Answer: 5

Tony needs to place 80 chairs at 8 tables. Each table needs to have the same number of chairs. Select all the statements that describe how many chairs Tony will put at each table.

At each table: less than 4 chairs

✓ At each table: more than 8 chairs There are 20 chairs at each table. ✓ There are 10 chairs at each table.

At each table: more than 16 chairs

There are more than 100 donuts in all.

5

Nancy read 7 pages of a storybook on the first day. To complete the book the next day, she needs to read double the number of pages she read on the first day. How many pages does Nancy need to read the next day?

There are 24 chairs at each table.

6

Danni uses 3 bows to make a gift box. If bows come in packages of 12, how many gift boxes can she make using 1 package of bows? Grid your answer.

Gridded Answer: 4

39 I Copying is strictly prohibited

TRAIN THE BRAIN PRACTICE 3 3.OA.3 (3.OA.1.3) DIRECTIONS: Solve the problems below.

1

A chocolate manufacturing company packs a certain number of chocolates in a box, as shown below. Describe the number of rows and columns in this box, and write a multiplication statement that describes the total number of chocolates in the box.

Answer: 5 × 4 = 20 chocolates

2 A dance troupe is training for an upcoming parade. There are 7 rows of dancers, and each row has 10 dancers in it. Determine how many dancers there are in the troupe. How did you get your answer?

Answer: 7 × 10 = 70 dancers 3 Bella was given homework on Monday to write 10 sentences. The following Monday, she was assigned to write twice the number of sentences she wrote on the previous Monday. How many sentences did she write in the 2 weeks combined?

Answer: 30 sentences 4 Madison is making 2 bookshelves for her living room. If each bookshelf can hold 9 books, how many books can both of the shelves hold?

Answer: 18 books 5 An array of squares is shown below. Write a division statement that explains the number of squares in 1 row.

Answer: 9 ÷ 3 = 3

6 Mai is making diamond-shaped figures using strips of construction paper. If she makes 5 figures, how many strips of construction paper will she use?

Answer: 20 strips of construction paper

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THINK TANK QUESTION DIRECTIONS: Study the picture below. Use the picture to complete the tasks below.

Part I: Write a multiplication expression that can represent the picture above.

3 × 8 = 24

Part II: Create a story problem related to the multiplication expression you created in Part I and then solve and show the solution to the story problem you created.

Answers may vary.

Anna made an arrangement of three rows of four-leaf clovers. If she placed eight four-leaf clovers in each row, how many four-leaf clovers did she use in all?

41 I Copying is strictly prohibited

Four-STAR CHALLENGE - 3.OA.3 (3.oa.1.3) 13 1

13 3

Gavin has a box of jars. The jars are arranged in 5 rows. There are 8 jars in each row. Which multiplication sentence below describes this array?

Li wants to buy a toy car. He saved $8 in the first month. To buy a toy car in the second month, he needs to save double the amount he saved in the first month. How much does Li need to save in the second month?

A

5 × 8 = 40

A a

$8

B a

5 × 5 = 25

B a

$10

Ca

8 × 8 = 64

C

$16

D a

8 × 2 = 16

D a

$64

A farmer harvested 8 baskets of corn yesterday. Each basket has 9 corn stalks. If c is the total amount of corn the farmer harvested, select all the equations he can use to find the amount of corn he harvested.

14 4

Linda needs to pack 48 eggs into 8 trays. Each tray should have the same number of eggs. If e represents the number of eggs in 1 tray, select all the equations she can use to find how many eggs should be in each tray.

The equation 8 + 9 = c.

The equation 48 + 8 = e.

The equation c − 9 = 8.

The equation e − 48 = 8.

The equation 9 + c = 8.

✓ The equation 48  e = 8.

The equation 8 × 48 = e.

✓ The equation 8 × 9 = c. ✓ The equation 9 × 8 = c.

The equation 8  c = 9.

17 5

14 2

Marcia sells cookies in packages of 8.

She baked 48 cookies. How many packages of cookies can she sell?

Grid your answer.

Gridded Answer: 6

42 I Smart to the Core I Educational Bootcamp

The equation 48 × 8 = e. ✓ The equation 48  8 = e.

Erick uses 6 candles to make 1 hex18 6 agon. If candles come in boxes of 18, how many hexagons can he make using 1 box of candles? Grid your answer.

Gridded Answer: 3

7

Solve the word problems below. Show your complete solution.

A. Melvin wants to arrange 5 rows of B. Tommy needs to put 35 eggs on 7 trays. chairs for the party this afternoon. He He wants to put the same number of wants to put 6 chairs in every row. How eggs on each tray. How many eggs does many chairs will he need? he need to put on 1 tray?

Answer: 30 chairs

8 A.

Answer: 5 eggs

Create story problems for the number sentences below and solve.

8×7

B.

28  4

Answers may vary.

Answers may vary.

Answer: There are seven rows of chairs in Anton’s classroom. If each row has eight chairs, how many chairs are there in Anton’s classroom?

Answer: John needs to pack 28 ounces of salt in 4 different jars. If each jar will have the same amount of salt, how much salt should John put in each jar?

Solution: 8 × 7 = 56 chairs

Solution: 28 ÷ 4 = 7 ounces

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1

2

3

4

THINK TANK QUESTION 9

DIRECTIONS: Study the picture below. Use the picture to complete the tasks.

Part I: Write a division expression that can represent the picture above.

24 ÷ 8 = 3 or 24 ÷ 3 = 8

Part II: Create a story problem related to the division expression you created in Part I and then solve and show the solution to the story problem you created.

Answers may vary.

Sally has a collection of 28 stickers of four-leaf clovers. She wants to display the stickers in an album. If she wants to put 4 stickers on each page of the album, how many pages does Sally need?

44 I Smart to the Core I Educational Bootcamp

MISSION 12:: Multiplying whole numbers BY MULTIPLES OF 10 Multiply one-digit whole numbers by multiples of 10 in the range 10–90 (e.g., 9 × 80, 5 × 60) using strategies based on place value and properties of operations.

Bootcamp STRATEGY 1: Use place value strategies to multiply one-digit whole numbers by multiples of 10.

Example: 7 × 80 = 560 Step 1: Break the equation into the simple multiplication fact 7 × 8 = 56 Step 2: Add zero to the product to account for the multiple of 10.

Bootcamp STRATEGY 2: Use models to multiply one-digit whole numbers by multiples of 10.

Example: 7 × 80 = 560 Step 1: Draw 7 groups of 80 in which each line represents 10.

Step 2: Regroup in groups of 100.

100

1 2 3 4 5 6

100

100 100

100

Bootcamp STRATEGY 3: Use the distributive property to multiply one-digit whole numbers by multiples of 10.

Example: 7 × 40 = 280 Step 1: Break 40 into 10 + 10 + 10 + 10.

Step 2: Create a model to demonstrate 4 groups of 7 × 10.

Step 3: Find the sum of the 4 products.

10

7

70

10

7

70

10

7

70

10

7

70

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TRAIN THE BRAIN PRACTICE 1 3.NBT.3 (3.NBT.1.3) DIRECTIONS: Use place value strategies, models, or the distributive property to multiply the numbers below. Show your work.

1

4

7 × 40 =

280

40 × 3 =

120

126 I Smart to the Core I Educational Bootcamp

2

5

40 × 6 =

240

4 × 30 =

120

3

6

60 × 3 =

50 × 5 =

180

250

Target PRACTICE 1 1

There are 5 mailboxes in a building.

A postal worker puts 30 letters in each mailbox. How many letters are in all the mailboxes? Grid your answer.

2

Gridded Answer: 360

Gridded Answer: 150

3

Select all the equations below that have a product of 40.

A dressmaker made rolls of 40-foot ribbons. How many feet are in 9 rolls? Grid your answer.

4

Select all the equations below that have a product of 80.

✓ 2 × 20 = 40

20 × 40 = 80

✓ 1 × 40 = 40

5

✓ 40 × 2 = 80

✓ 4 × 10 = 40

10 × 40 = 80

0 × 40 = 40

20 × 20 = 80

20 × 20 = 40

✓ 4 × 20 = 80

4 × 20 = 40

✓ 8 × 10 = 80

Ash plays football for 50 minutes each day. How many minutes will Ash play in 7 days?

6

A teacher purchased 60 notebooks.

Each notebook costs $3. How much did the teacher spend in all?

A a

12 minutes

A a

$18

B a

35 minutes

B a

$90

Ca

225 minutes

C

$180

D

350 minutes

D a

$360

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TRAIN THE BRAIN PRACTICE 2 3.NBT.3 (3.NBT.1.3) DIRECTIONS: Use place value strategies, models, or the distributive property to multiply the numbers below. Show your work.

1

5 × 60 =

300

4

80 × 5 =

400

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2

5

20 × 3 =

60

10 × 3 =

30

3

6

40 × 8 =

8 × 20 =

320

160

Target PRACTICE 2 1

There are 8 computer labs at the high school. Each computer lab has 30 computers. How many computers are in all the labs? Grid your answer.

2

Gridded Answer: 240

Gridded Answer: 240

3

Select all the expressions that have the same product as the expression below.

Biscuits come in packages of 40. How many biscuits would there be in 6 packages? Grid your answer.

4

Select all the expressions that have the same product as the expression below.

7 × 40 = ?

3 × 90 = ?

✓ 28 × 10

✓ 90 × 3

14 × 10

3 × 27 30 × 3

✓ 40 × 7

✓ 27 × 10

✓ 10 × 28 5

Tina has a café. She bakes 80 muffins each day. How many muffins will Tina bake in 9 days?

6

Abby wants to make 70 bows to sell at the fair. To make each bow, 6 feet of ribbon is needed. How many feet does Abby need?

A

720

A a

42 feet

B a

630

B a

76 feet

Ca

540

C

420 feet

D a

450

D a

720 feet

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TRAIN THE BRAIN PRACTICE 3 3.NBT.3 (3.NBT.1.3) DIRECTIONS: Answer the questions below.

1

A school has 10 third grade classrooms. Each classroom can have a maximum of 50 students. Determine how many students can be held in all the classrooms and explain how you got your answer.

Answer: 10 × 50 = 500 students

2

Melanie bought 5 bags of oranges. There are 10 oranges in each bag. How many oranges does she have?

Answer: 50 oranges

3

Kandy spends 10 hours a day in her office and works 4 days a week. How many hours does Kandy spend in her office after 4 weeks? What are the steps you used to find the answer?

Answer: (4 × 10) × 4 = 160 hours

4

Write a multiplication sentence that models the figures shown below.

Answer: 2 × 10 = 20 or 10 × 2 = 20

5

Alan gave money to his 4 nephews for Christmas. If he gave $30 to each nephew, how much money did Alan spend?

Answer: $120.00

130 I Smart to the Core I Educational Bootcamp

THINK TANK QUESTION DIRECTIONS: Show your work to solve the questions in the space provided.

Part I: Multiply 20 by 7.

20 × 7 = 140

Part II: Multiply 90 by 7.

90 × 7 = 630

Part III: Multiply 20 by 3 and multiply the result by 4.

(20 × 3) × 4 = 60 × 4 = 240

Part IV: Solve both sides of the equation to determine whether the following statement is correct: 5 × (50 + 40) = (5 × 50) + (5 × 40).

5 × (50 + 40) = 5 × 90 = 450 (5 × 50) + (5 × 40) = 250 + 200 = 450 The statement is correct.

131 I Copying is strictly prohibited

Four-STAR CHALLENGE - 3.NBT. 3 (3.nbt.1.3) 1

There is a 7-story shopping plaza in a town. Each story has 60 shops. What is the total number of shops in the shopping plaza? Grid your answer.

2

Gridded Answer: 320

Gridded Answer: 420

3

Lisa ordered 8 crates of soda to sell at her store. If each crate contains 60 cans of soda, select all the statements that are true.

4

✓ Lisa ordered more than 420 cans.

Lisa ordered less than 480 cans.

Less than 480 packs were bought. ✓ More than 520 packs were bought. ✓ The school bought 560 packs.

The school bought 420 packs.

The school bought 630 packs.

✓ Lisa ordered more than 360 cans.

5

Todd gives each of his 4 kids $70 for their birthday. How much money does Todd give to his kids in all?

The school bought 7 boxes of copy paper. If each box contains 80 packs of paper, select all the statements that are true.

More than 560 packs were bought.

Lisa ordered 420 cans. ✓ Lisa ordered 480 cans.

Lisa ordered 360 cans.

Bottles of juice are sold in cases of 40. How many bottles are there be in 8 cases? Grid your answer.

6

In a zoo, there are 8 cages with 50 birds in each cage. How many birds are in the zoo?

A a

$70

A a

40

B a

$74

B a

58

Ca

$200

C

400

D

$280

D a

580

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7

Terry wants to multiply 2 numbers together to get a product of 320. One of the multipliers must be in multiples of 10 (20, 30, etc.). Give 2 equations in which a number will be multiplied by a multiple of 10 to get a product of 320 and solve.

Answers may vary.

First equation: ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ 40 8 Answer: _______ × ________ = 320 Answers may vary.

Second equation: _________________________________________________________________________________________________ _________________________________________________________________________________________________ 80 4 Answer: _______ × ________ = 320

8

Walt bought a set of 4 books from his favorite fiction series. Each book costs $40. Show your work to solve the questions below.

Part I: How much did this 1 set of 4 books cost Walt?

Answer: $160.00 _____________________________________________________________________________________________ _____________________________________________________________________________________________ _____________________________________________________________________________________________ Part II: If Walt buys 2 more sets for his friends, how much will he have spent on books in all?

Answer: $480.00 _____________________________________________________________________________________________ _____________________________________________________________________________________________ _____________________________________________________________________________________________ _____________________________________________________________________________________________

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1

2

3

4

THINK TANK QUESTION 9

DIRECTIONS: Fill in the missing number or symbol to complete the equations.

Part I:

5 30 × _______ = 150

Part II:

70 ×

8 _______ = 560

Part III:

20 ×

800 40 = _________

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