Smart to the Core - Grade 2 - Preview

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SMART TO THE CORE STUDENT PRACTICE BOOKLET GRADE 2

Building Depth of Knowledge (DOK)

BOOKLET INCLUDES:

Core Skills Activities - drills on the basic skills associated with each individual benchmark (DOK 1). Practice Drill Worksheets - practice problems requiring the application of skills and real world problem solving (DOK 2). Five-Star Challenge - assessments that measure students’ depth of knowledge including: their ability to reason abstractly, create models, write arguments and critique strategies.

Math Bootcamp - Smart to the Core Student Booklet (Grade 2) Publisher: J & J Educational Bootcamp Content Development: J & J Educational Bootcamp Senior Editor: Yasmin Malik Cover Design: Doris Araujo, Inc. Copyright © 2014 by J & J Educational Bootcamp J & J 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 J & J Educational Bootcamp. Printed in the United States of America


SMART TO THE CORE TABLE OF CONTENTS GRADE 2 CCSS Code

SMART TO THE CORE LESSONS

Page Number

2.OA.1

Lesson 1: Solving One- to Two-Step Word Problems

4-11

2.OA.2

Lesson 2: Using Mental Math to Add and Subtract Within 20

12-19

2.OA.3

Lesson 3: Determining Even and Odd Numbers

20-27

2.OA.4

Lesson 4: Using Equations and Arrays

28-35

2.NBT.1

Lesson 5: Determing Place Value

36-43

2.NBT.2

Lesson 6: Using Skip Counting

44-51

2.NBT.3

Lesson 7: Reading and Writing Numbers

52-59

2.NBT.4

Lesson 8: Comparing Numbers

60-67

2.NBT.5

Lesson 9: Understanding Properties of Addition

68-75

2.NBT.6

Lesson 10: Solving Two-Digit Addition

76-83

2.NBT.7

Lesson 11: Solving Three-Digit Addition and Subtraction

84-91

2.NBT.8

Lesson 12: Using Mental Math

92-99

2.NBT.9

Lesson 13: Understanding Addition and Subtraction Strategies

100-107

2.MD.1

Lesson 14: Measuring Length

108-115

2.MD.2

Lesson 15: Using Units to Measure Length

116-123

2.MD.3

Lesson 16: Estimating Length

124-131

2.MD.4

Lesson 17: Determining the Difference in Lengths

132-139

2.MD.5

Lesson 18: Adding and Subtracting Lengths

140-147

2.MD.6

Lesson 19: Using Number Lines to Represent Whole Numbers

148-155

2.MD.7

Lesson 20: Telling Time

156-163

2.MD.8

Lesson 21: Solving Word Problems Involving Money

164-171

2.MD.9

Lesson 22: Using Measurement Data

172-179

2.MD.10

Lesson 23: Drawing Graphs

180-187

2.G.1

Lesson 24: Recognizing and Drawing Shapes

188-195

2.G.2

Lesson 25: Partitioning Rectangles Into Squares

196-203

2.G.3

Lesson 26: Partitioning Shapes Into Equal Parts

204-211


Five-Star Challenge scoring rubric

1

2

3

The student earns

The student earns

The student earns

ONE star

TWO stars

THREE stars

for correctly answering

for correctly answering

for correctly answering

49% or less.

50 - 69%.

70 - 79%.

1

2

3

4

5

1

2

3

4

5

1

2

4

5

The student earns

The student earns

FOUR stars

FIVE stars

for correctly answering

for correctly answering

80 - 89%.

90 - 100%.

1

2

3

4

5

1

2

3

4

5

3

4

5


Name ____________________________________________________________________

Determining Even and Odd Numbers Core Skills 1 2.OA.3: Determine whether a group of numbers (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.

An even number is a number that can be separated into 2 groups evenly, whereas an odd number cannot be separated into 2 groups evenly.

14

19

THINK

THINK

To determine if 14 is an even number, look at the ones place. Can 4 be separated into 2 groups evenly? Yes, 2 groups of 2 is 4. Therefore, 14 is an even number.

To determine if 19 is an even number, look at the ones place. Can 9 be separated into 2 groups evenly? No, it cannot. Therefore, 19 is an odd number.

DIRECTIONS: Count how many images there are, and write that number in the blank. Separate the images into groups of 2 to determine whether each number is even or odd. Circle the correct answer. 1.

2.

_______

Even

_______

Odd

3.

Odd

4.

_______

Even

20

Even

_______

Odd

Even

Odd

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Practice Drill 1

Determining Even and Odd Numbers 2.OA.3

1

At a market, a box of fruit contains an even number of apples and an odd number of mangoes. Which of the following could be the number of fruits in the box?

A

3 apples and 5 mangoes

B

7 apples and 6 mangoes

C

4 apples and 9 mangoes

2

Which of the following sets show an even number of cubes?

A

C

B

D

6 apples and 4 mangoes D

3

Riley shades a pair of ten frames to show an even number. Which of the following could be Riley’s frames?

4

The shaded circles show 2 groups that are equal to 6. What addition sentence will show the number of circles in each group?

A A 2+4=6

B

3+3=6 B

C

C 1+5=6

D

5

D 0+6=6 Sara and Luna each make the same number of bouquets. They make 8 bouquets in all. What addition sentence below shows the number of bouquets each of them make?

6

There are 16 earrings in the store. If earrings are sold in pairs, how many pairs of earrings are there?

A 4+4=8

A 3

3+5=8 B

4 B

C 2+6=8

C 6

D 1+7=8

D 8

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Name ____________________________________________________________________

Core Skills 2 2.OA.3: Determine whether a group of numbers (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.

DIRECTIONS: Create an image to depict each of the equations below. Determine whether the sum is even or odd by placing a check () in the correct box. 1.

1+1=2

2.

Even

3+3=6

Odd

3.

8 + 8 = 16

Even Odd

4.

Even

Odd

7 + 7 = 14

Even Odd

DIRECTIONS: Determine what equation can be used to describe the images in each question below using equal addends. 5.

6.

______ + ______ = ______

______ + ______ = ______

7.

8.

______ + ______ = ______

22

______ + ______ = ______

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Practice Drill 2

Determining Even and Odd Numbers 2.OA.3

1

Carl has a collection of an odd number of video games and an even number of DVDs. What could be the number of video games and DVDs in Carl’s collection?

A

8 video games and 11 DVDs

B

9 video games and 14 DVDs

C

5 video games and 13 DVDs

16 video games and 7 DVDs D

3

Lisa has an even number of cubes. She stacked all the cubes in pairs. Which of the following could be Lisa’s cubes?

2

Which of the following shows an odd number of cans?

A

C

B

D

4

The shaded squares show 2 groups that equal to 8. What addition sentence will show the number of shaded squares in each group?

A A 4+4=8

B

3+5=8 B

C

C 2+6=8

D

5

D 1+7=8 Henry scored same number of points in Round 1 and Round 2. He scored 6 points in both rounds. Which of the following addition sentences show the number of points Henry scored in each round?

6

Robin rented a kiosk in the mall to sell shoes. He sold 12 shoes. If shoes are sold in pairs, how many pairs of shoes did Robin sell?

A 0+6=6

A 2

2+4=6 B

4 B

C 1+5=6

C 6

D 3+3=6

D 8

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Name ____________________________________________________________________

Core Skills 3 2.OA.3: Determine whether a group of numbers (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.

1. Elizabeth and Darcy took turns recording how many seconds they could hold their breath in the pool and recorded it in the chart below. Circle the odd numbers, and shade in the even numbers.

Names Elizabeth Darcy

Attempt 1 6 8

Attempt 2 10 9

Attempt 3 13 11

Attempt 4 19 20

2. Look at the number line, and answer the questions below.

1

2

3

4

5

6

7

8

9

10 11 12 13 14 15 16 17 18 19 20

1) What numbers are even? 2) What numbers are odd? 3) If you add 2 equal addends that are odd, will the sum be even? If so, give an example. 4) If you add 2 even numbers, will the sum be even? If so, give an example.

24

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Practice Drill 3

Determining Even and Odd Numbers 2.OA.3

1

Jonathan has an even number of granddaughters and an odd number of grandsons. What could be the number of grandchildren Jonathan has?

A

8 granddaughters and 10 grandsons

B

13 granddaughters and 6 grandsons

C

7 granddaughters and 12 grandsons

2

A

6 granddaughters and 9 grandsons D

3

Mr. Carlsons asked his students to arrange cubes in ten frames to show an odd number. Which image below could be the ten frame?

4

A

B

C

D

The shaded images show 2 groups that equal to 10. What addition sentence will show the number of shaded shapes in each group?

A 3 + 7 = 10

B

4 + 6 = 10 B

C

C 5 + 5 = 10

D 5

Which of the following shows an even number of footballs?

D 2 + 8 = 10 There are 12 hens in 2 pens. Each pen has the same number of hens. What addition sentence shows the number of hens in each pen?

6

Tourists are travelling in pairs by motor bikes. There are 18 tourists in all. How many pairs of tourists are riding motor bikes?

A 6 + 6 = 12

A

6

5 + 7 = 12 B

B

7

C 4 + 8 = 12

C

8

D 3 + 9 = 12

D

9

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Name ____________________________________________________________________

Five-Star Challenge 2.oa.3 1

Elena brought an even number of cupcakes and an odd number of cookies to the party. What could be the number of treats Elena brought to the party?

A

13 cupcakes and 18 cookies

B

14 cupcakes and 16 cookies

C

15 cupcakes and 17 cookies

2

3

Ari is trying to find a pair of ten frames that has an even number of circles. Which frame below is Ari’s?

4

A

4

5

YOUR SCORE HERE

B

C

D

The shaded pentagons show 2 groups that equal to 12. Which addition sentence below shows the number of shaded pentagons in each group?

4 + 8 = 12 B

C

C 1 + 11 = 12 6 + 6 = 12 D

D

26

3

A 2 + 10 = 12

B

5

2

Which of the following shows an odd number of letters?

A

16 cupcakes and 19 cookies D

1

Andrew divided coins into 2 equal stacks. He put the same number of coins in each stack. If he had a total of 10 coins, which addition sentence below shows the number of coins Andrew put in each stack?

6

There are 14 students signed up for the debate contest. Students will be put into pairs to make teams. How many teams will there be?

A 5 + 5 = 10

A 5

1 + 9 = 10 B

7 B

C 4 + 6 = 10

C 6

D 2 + 8 = 10

D 8

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Five-Star Challenge 2.oa.3 7

A group of second graders has an odd number of girls and an even number of boys. Which combination below could be the number of kids in the group?

A

11 girls and 20 boys

B

12 girls and 18 boys

C

13 girls and 17 boys

8

A

14 girls and 15 boys D

9

Flip shaded an odd number of cubes. Which of the following could be Flip’s cubes?

Which of the following shows an even number of locks?

10

B

C

D

The shaded shapes show 2 groups that equal to 14. What equation shows the number of shaded shapes in each group?

A B

A 4 + 10 = 14 B

C

6 + 8 = 14 C 7 + 7 = 14 D

D 11

5 + 9 = 14

Meranda planted the same number of palm trees and fruit trees in her garden. She planted 20 trees in all. Which addition sentence below shows the number of palm trees and fruit trees Meranda planted?

12

In each compartment of a train, the seats are grouped in pairs. There are 22 seats in each compartment. How many pairs of seats are in each compartment?

A 9 + 11 = 20

A 9

10 + 10 = 20 B

10 B

C 8 + 12 = 20

C 11

D 5 + 15 = 20

D 12

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Name ____________________________________________________________________

Solving Three-Digit Addition and Subtraction Core Skills 1 2.NBT.7: Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. When adding or subtracting 2 multi-digit numbers, the numbers must first be stacked one on top of the other. In subtraction, the larger numbers must be stacked first. The numbers are then added or subtracted according to its place value. Add or subtract the ones values, tens values, and hundreds values starting from the lowest place value first.

123 + 456 = 579

987 - 654 = 333

THINK

THINK

Look at the addition problem. We need to add the digits together starting with the lowest place value. 123

Look at the subtraction problem. We need to subtract the digits starting with the lowest place value. 987

We can see that the addition sentence is CORRECT.

We can see that the subtraction sentence is CORRECT.

+ 456 579

− 654 333

DIRECTIONS: Tell whether the number sentence is CORRECT or NOT CORRECT by placing a check () in the appropriate box. 1.

248 + 369 = 615

2.

795 – 642 = 153

CORRECT

CORRECT

NOT CORRECT

NOT CORRECT

3.

844 – 633 = 211

4.

500 + 321 = 821

CORRECT

CORRECT

NOT CORRECT

NOT CORRECT

84

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Name ____________________________________________________________________

Practice Drill 1

Solving Three-Digit Addition and Subtraction 2.NBT.7

1

Liam painted his house using 220 liters of white paint and 45 liters of light blue paint. How many liters of paint did Liam use in all?

2

A 260

Shane runs his own baking company. This morning, Shane’s employees baked 173 blueberry pies. They also baked some more after lunch. In total, they baked 795 blueberry pies. How many blueberry pies did Shane’s employees bake after lunch?

270 B

A 622

C 265

632 B

D 285

C 641

3

To fill an order, the company produced 351 bottles of soda and 238 bottles of juice. Which of the following number sentences show the total number of bottles produced for the order?

D 652 4

Mr. Cunningham is a postal worker. Last week, he delivered a total of 437 letters. If he delivered 125 of those letters to schools, which of the following number sentences show how many letters Carl did not deliver to schools?

A

315 + 283 = 598

B

135 + 823 = 958

A

437 – 125 = 312

C

351 + 238 = 589

B

473 – 152 = 321

D

153 + 832 = 985

C

347 – 215 = 132

D

374 – 251 = 123

5

Faye wrote a number sentence on the board.

645 + _______ = 778

Which of the following is the missing ­number for the number sentence above?

6

Martin wrote a number sentence on the board.

857 - _______ = 326

Which of the following is the missing ­number for the number sentence above?

A 133

A 631

123 B

531 B

C 233

C 431

D 223

D 331

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Name ____________________________________________________________________

Core Skills 2 2.NBT.7: Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method.

DIRECTIONS: Circle the number that will make each number sentence TRUE. 1.

3.

345 + 24 =

+ 50

228

319

112 + 561 =

+ 18

655

650

2.

4.

587 − 60 =

− 50

577

575

259 − 113 =

− 28

176

174

DIRECTIONS: Complete the steps by writing the CORRECT number in the box.

5.

7.

86

146 + 21 1 7 510 + 144 6 4

6.

8.

299 − 38 2 1 610 − 239 3 1

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Practice Drill 2

Solving Three-Digit Addition and Subtraction 2.NBT.7

1

For the experiment, Louis needed to add 140 mg of baking soda and 50 mg of sugar together. How many mg of materials did he need?

2

A 160

Henry runs his own radio station. This morning, he played 253 songs. He also played some more after lunch. In total, he played 567 songs. How many songs did he play after lunch?

170 B

A 213

C 180

314 B

D 190

C 543

3

To fill an order, Sally baked 462 donuts and 327 cookies. Which of the following number sentences represent the total number of baked goods Sally made?

D 235 4

Ronald is a bus driver. Last week, he had a total of 653 passengers. If 212 of his passengers are children, which of the following number sentences show how many of Ronald’s passengers are adults?

A

462 + 327 = 789

B

426 + 372 = 798

A

635 – 221 = 414

C

642 + 237 = 879

B

563 – 122 = 441

D

624 + 273 = 897

C

653 – 212 = 441

D

365 – 221 = 144

5

Carl wrote a number sentence on the board.

721 + _______ = 965

Which of the following is the missing ­number for the number sentence above?

6

Ryan wrote a number sentence on the board.

738 - _______ = 425

Which of the following is the missing ­number for the number sentence above?

A

244

A 331

B

344

133 B

C

434

C 313

D

424

D 413

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Name ____________________________________________________________________

Core Skills 3 2.NBT.7: Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method.

1. Find the sum of the 2 numbers, and show your complete solution.

385 + 2 7 The sum of 385 and 27 is ______. Show your work:

2. Find the difference of the 2 numbers, and show your complete solution.

743 − 1 9 8 The difference of 743 and 198 is ______. Show your work:

88

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Practice Drill 3

Solving Three-Digit Addition and Subtraction 2.NBT.7

1

Julia drank 130 ounces of water on Monday and 56 ounces of water on Tuesday. How many ounces of water did Julia drink on those 2 days?

2

A 180

Sarah runs her own printing company. This morning, Sarah’s workers printed 579 books. The workers printed some more books after lunch. In total, they printed 900 books. How many books did Sarah’s workers print after lunch?

186 B

A 213

C 185

321 B

D 189

C 543

3

D 235

To fill an order, the farmer harvested 548 crates of ripe mangoes and 151 crates of green mangoes. Which of the following number sentences represent the total number of crates of mangoes the farmer harvested to fill the order?

A

584 + 115 = 699

B

854 + 115 = 969

C D

5

4

Rico is selling vegetables. Yesterday, he sold a total of 926 vegetables. If he sold 415 vegetables in the morning, which of the following number sentences show the number of vegetables Rico sold in the afternoon?

A

962 – 451 = 511

B

296 – 145 = 151

845 + 151 = 996

C

926 – 415 = 511

548 + 151 = 699

D

269 – 154 = 115

Mark wrote a number sentence on the board.

751 + _______ = 996

Which of the following is the missing ­number for the number sentence above?

6

Kara wrote a number sentence on the board.

548 - _______ = 217

Which of the following is the missing ­number for the number sentence above?

A

245

A 313

B

145

133 B

C

254

C 331

D

154

D 311

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Name ____________________________________________________________________

Five-Star Challenge 2.NBT.7 1

Jenny decorated her cookies using 320 grams of chocolate icing and 56 grams of vanilla icing. How many grams of icing did Jenny use in all?

2

A 276

A 426

C 476

462 B

D 176

C 362

4

5

D 326

To fill an order, the supermarket delivered 611 pounds of chicken and 388 pounds of beef. Which of the following is the number sentence that represents the total amount of meat delivered by the supermarket?

4

Mark sells balloons. Last week, he sold a total of 684 balloons. If he sold 453 balloons in the park, which of the following number sentences show the number of ballons Mark sold outside the park?

611+ 388 = 999

B

161+ 838 = 999

A

684 – 453 = 231

C

116+ 883 = 999

B

864 – 543 = 321

D

161+ 830 = 999

C

648 – 435 = 213

D

846 – 534 = 312

Faith wrote a number sentence on the board.

3

YOUR SCORE HERE

A

5

312 + _______ = 574

Which of the following is the missing ­number for the number sentence above?

90

2

Joe runs his own garment factory. This morning, Joe’s workers made 452 dresses. They made some more after lunch. In total, they made 778 dresses. How many dresses did Joe’s workers make after lunch?

376 B

3

1

6

Marcus wrote a number sentence on the board.

549 - _______ = 225

Which of the following is the missing ­number for the number sentence above?

A

622

A 324

B

226

224 B

C

262

C 424

D

362

D 524

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Five-Star Challenge 2.NBT.7 7

Ashton painted his tree house using 420 liters of white paint and 65 liters of pale yellow paint. How many liters of paint did Ashton use in all?

8

A 485

Violet runs her own catering company. This morning, Violet and her staff cooked 243 meals for a party. They made more meals after lunch. In total, they cooked 697 meals. How many meals did Violet and her staff cook after lunch?

585 B

A 554

C 285

544 B

D 385

C 445

9

D 454

To fill an order, the poultry farm produced 463 brown eggs and 125 white eggs. Which of the following number sentences represent the total number of eggs the farm produced for the order?

10

Jake is a baker. Last week, he baked a total of 579 apple pies. If he baked 345 apple pies in the mornings, which of the following number sentences show the number of apple pies Jake baked in the afternoons?

A

436 + 152 = 588

B

463 + 125 = 588

A

579 – 345 = 234

C

643 + 215 = 858

B

597 – 354 = 243

D

634 + 251 = 885

C

759 – 435 = 324

D

795 - 453 = 342

11

Kristine wrote a number sentence on the board.

364 + _______ = 795

Which of the following is the missing ­number for the number sentence above?

12

Leo wrote a number sentence on the board.

758 - _______ = 537

Which of the following is the missing ­number for the number sentence above?

A

413

A 122

B

143

221 B

C

431

C 212

D

314

D 321

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