LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1...

32
twenty-one 21 Number Stories LESSON 2 1 Date Time Write an addition number story about what you see in the picture. Write a label in the unit box. Find the answer. Write a number model. Example: 7 ducks in the water . 5 ducks in the grass. How many ducks in all? Answer the question: (unit) Number model: + = Story: Answer the question: (unit) Number model: + = 12 5 7 12 ducks Unit ducks Unit

Transcript of LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1...

Page 1: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

twenty-one 21

Number StoriesLESSON

2 �1

Date Time

Write an addition number story about what you see in the picture. Write alabel in the unit box. Find the answer. Write a number model.

Example: 7 ducks in the water. 5 ducks in the grass.How many ducks in all?

Answer the question: (unit)

Number model: + =

Story:

Answer the question:(unit)

Number model: + =

1257

12 ducks

Unitducks

Unit

Page 2: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

22 twenty-two

Number-Grid PuzzlesLESSON

2 �1

Date Time

28 58

15

33

52

1120

349

378

357

336

373

332

361

Com

plet

e th

e nu

mbe

r-grid

puz

zles

.

Page 3: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

Math Boxes LESSON

2 �1

Date Time

twenty-three 23

Unit

apples

1. Six apples are red. Fiveapples are green. How manyapples in all?

Number Model

3. Fill in the blanks.

83, , 81, , , 78

2. Use your calculator.Show 14.Broken key is .Show 2 ways:

4. Use � or �.

4 � 5 10

12 7 � 4

15 8 �

6 � 7 15 � 4

5. Write the time.

:

12 12

3

4567

8

9

1011

6. How much money? Fill in thecircle next to the best answer.

A $2.40 B $11.45

C $11.40 D $2.4580

9

Page 4: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

24 twenty-four

Facts Power TableLESSON

2 �2

Date Time

0 0 0 0 0 0 0 0 0 0� 0 � 1 � 2 � 3 � 4 � 5 � 6 � 7 � 8 � 9

1 1 1 1 1 1 1 1 1 1� 0 � 1 � 2 � 3 � 4 � 5 � 6 � 7 � 8 � 9

2 2 2 2 2 2 2 2 2 2� 0 � 1 � 2 � 3 � 4 � 5 � 6 � 7 � 8 � 9

3 3 3 3 3 3 3 3 3 3� 0 � 1 � 2 � 3 � 4 � 5 � 6 � 7 � 8 � 9

4 4 4 4 4 4 4 4 4 4� 0 � 1 � 2 � 3 � 4 � 5 � 6 � 7 � 8 � 9

5 5 5 5 5 5 5 5 5 5+ 0 � 1 � 2 � 3 � 4 � 5 � 6 � 7 � 8 � 9

6 6 6 6 6 6 6 6 6 6� 0 � 1 � 2 � 3 � 4 � 5 � 6 � 7 � 8 � 9

7 7 7 7 7 7 7 7 7 7� 0 � 1 � 2 � 3 � 4 � 5 � 6 � 7 � 8 � 9

8 8 8 8 8 8 8 8 8 8� 0 � 1 � 2 � 3 � 4 � 5 � 6 � 7 � 8 � 9

9 9 9 9 9 9 9 9 9 9� 0 � 1 � 2 � 3 � 4 � 5 � 6 � 7 � 8 � 9

Page 5: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

twenty-five 25

Distances on a Number GridLESSON

2 �2

Date Time

Example: How many spaces do you move to go from17 to 23 on the number grid?

Solution: Place a marker on 17. You move the marker6 spaces before landing on 23.

How many spaces from:

23 to 28? 15 to 55? 39 to 59?

27 to 42? 34 to 26? 54 to 42?

15 to 25? 26 to 34?

11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

1 2 3 4 5 6 7 8 9 10

11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50

51 52 53 54 55 56 57 58 59 60

Page 6: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

Math Boxes LESSON

2 �2

Date Time

26 twenty-six

3. Solve.

4 � 3 �

10 � 7 �

5 8� 4 � 3

2. Fill in the missing numbers.

455, , , 458

4. Show $1.00 three ways. Use ‰, Í, and Â.

5. Mrs. Satz’s Class’s Favorite Colors

Which color is themost popular?

Unit

Colors Tallies

Red ////\ ////\Blue ////\ ///

Green ////\ Yellow //

1. Count by 3s. Use your calculator.

, , , ,

, 15

6

6. Fill in the circle that names the number.

5 ones A 564

6 hundreds B 356

3 tens C 635

D 536

162 163

88–90

10

Page 7: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

twenty-seven 27

Addition/Subtraction Facts TableLESSON

2 �3

Date Time

0

0

1

2

3

4

5

6

7

8

9

5

6

7

8

9

10

6

7

8

9

10

11

7

8

9

10

11

12 13 14 15 16 17 18

10

11

12

11

12

13

12

13

14

13

14

15

14

15

16

15

16

17

8

9

9

10

10

11

11

12

12

13

13

14

4 5 6 7 8 9 10 11 12

3 4 5 6 7 8 9 10 11

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

10

0

1

2

3

4

5

6

7

8

9

�,� 1 2 3 4 5 6 7 8 9

Page 8: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

28 twenty-eight

Domino-Dot PatternsLESSON

2�3

Date Time

Draw the missing dots on the dominoes. Find the total numberon both halves.

1. double 2 2. double 3 3. double 4 4. double 5

2 3 4 5� 2 � 3 � 4 � 5

5. double 6 6. double 7 7. double 8 8. double 9

6 7 8 9� 6 � 7 � 8 � 9

Find the total number of dots.

9. 10. 11. 12.

4 6 6 8� 5 � 5 � 7 � 7

Page 9: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

twenty-nine 29

Doubles or Nothing Record SheetLESSON

2 �3

Date Time

Round 1

Total

Round 2

Total

Round 3

Total

Grand Total

Page 10: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

Math BoxesLESSON

2 �3

Date Time

30 thirty

1. Julie had 10 crayons. Rosagave her 8 more crayons. Howmany crayons in all?

crayons

Number model:

5. Draw the hands to show10:30.

6. Kyra has 2 dimes and 3 nickelsin her left pocket. She has1 quarter and 2 pennies in herright pocket. How much moneydoes she have?

[cAn

2. Use your calculator. Show 25.Broken key is .Show 2 ways:

5

3. Count back by 5s.

45, 40, , , ,

, , 10,

Can you keep going?

0, ,

4. Write �, �, or �.

6 � 5 6 � 6

8 � 3 12

9 � 9 17

4 � 9 8 + 5

Unitcrayons

12 12

3

4567

8

9

1011

9

80 81 88

Page 11: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

thirty-one 31

�9 FactsLESSON

2 �4

Date Time

Write the sums.

1. 2. 3. � 9 + 5

4. � 2 � 9 5. 6.

7. 8. 1 � 9 � 9. 0 � 9 �

10. 11. 9 � � 12 12. 15 � 9 �

13. � 9 � 17 14. 13 � � 9

Write a �9 number story.

3� 9

9� 8

9� 9

9� 4

6� 9

7� 9

Unit

Unit

Page 12: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

Math BoxesLESSON

2 � 4

Date Time

32 thirty-two

1. Count by 6s. Use your calculator.

, 12, , , 30

3. Solve.

16 � � 1

� 14 � 0

� 9 � 9

� 5 � 12

6. 132 has… hundreds

tens

ones

2. Fill in the missing numbers.

4. Show $0.88 in two ways.Use ‰, Í, Â, and Î.

5. Room 10’s Favorite Seasons

Which seasons have the same number of votes?

196

207

Unit

Season Number of Children

Fall ////\ Winter ////\ //Spring ////\ Summer ////\ ////

162 163 97

88

10

Page 13: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

thirty-three 33

Addition FactsLESSON

2 �5

Date Time

If you know a double, you know the 1-more and the 1-less sums.

Example:If you know that 4 � 4 � 8,You know 4 � 5 � 9,And 4 � 3 � 7

5. 6. 7.

8. 5 � 8 � 9. � 6 � 9 10. 8 � 6 �

11. 8 � 8 � 12. 12 � 12 �

8 � 9 � 12 � 13 �

8 � 7 � 12 � 11 �

13. 15 � 15 � 14. 14 � 12 �

16 � 15 � 15 � 13 �

14 � 15 �

7� 9

8� 9

7� 5

Try This

1. 3 � 4 � 2. 8 � 7 �

3. � 6 � 7 4.6

� 5

Page 14: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

Math BoxesLESSON

2 �5

Date Time

34 thirty-four

3. Complete the fact family. Fill inthe missing domino dots.

8 � � 15

� 8 � 15

� 15 � 8

8 � 15 �

6. Draw hands to show 8:15.

4. How likely is it that our schoolwill have a fire drill today? Circle your answer.

certain

likely

unlikely

impossible

5. Put the numbers in order fromsmallest to largest. Circle themiddle number.

48, 44, 37, 54, 39

, , , ,

12 12

3

4567

8

9

1011

2. Circle the activity that takesabout 1 second.

Blinking your eyes.

Writing your name.

Reading a story.

52

25

46

1. What shape is the cover ofyour math journal? Fill in thecircle next to the best answer.

A rhombus

B rectangle

C triangle

D square

Page 15: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

thirty-five 35

Domino FactsLESSON

2 � 6

Date Time

For Problems 1 through 7, write 2 addition facts and 2 subtraction factsfor each domino.

� � � �

� � � �

� � � �

� �

� � � �

� � � �

� � � �

6

42 �

6

24 �

4

62 �

2

64

Try This

1. 2.

3. 4.

5. 6.

8. Write one addition fact and

7.one subtraction fact.

Page 16: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

Math Boxes LESSON

2 � 6

Date Time

36 thirty-six

1. Fill in the missing numbers.

3. Write the sums.

10 � 5 �

10 � 6 �

10 � 7 �

10 � 8 �

6. What time is it?:

What time will it be in 15 minutes?

:

4. Write these numbers in orderfrom smallest to largest. Beginwith the smallest number.

133, 146, 129, 151

, , ,

5. Put an X on the digit in thetens place.

456

309

144

155

Unit

12 12

3

4567

8

9

1011

°F

50

60

96

10 80 81

2. What is the temperature? Fillin the circle next to the bestanswer.

A 55 degrees

B 62 degrees

C 52 degrees

D 56 degrees

Page 17: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

thirty-seven 37

Subtraction Number StoriesLESSON

2 � 7

Date Time

Solve each problem.

1. Dajon has $11. He buys a book for $6. How much money does he have left?

$

2. Martin has 7 markers. Carlos has 4 markers. How many more markers does Martin have than Carlos?

markers

3. There are 11 girls on Tina’s softball team. There are 13 girls onLisa’s team. How many more girls are on Lisa’s team than on Tina’s?

girls

4. Julia has 10 flowers. She gives 4 flowers to her sister. How manyflowers does she have left?

flowers

5. Keisha has 8 chocolate cookies and 5 vanilla cookies. How many more chocolate cookies does she have than vanilla cookies?

chocolate cookies

6. Make up and solve your own subtraction story.

Page 18: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

Math BoxesLESSON

2 � 7

Date Time

38 thirty-eight

1. Use your Pattern-BlockTemplate. Draw a rhombus.

There are sides.

3. Write the fact family for this domino.

� �

� �

� �

� �

6. What time is it?

:

What time will it be in 30 minutes?

:

4. How likely is it that the schoolwill serve lunch today? Circleyour answer.

impossible

unlikely

likely

certain

5. Arrange the numbers in orderfrom smallest to largest. Circlethe middle number.

98, 56, 143, 172, 81

, , , ,

12 12

3

4567

8

9

1011

2. Circle the activity that takesabout 1 minute.

Brushing your teeth.

Eating lunch.

Playing a soccer game.

25

55

46 80 81

Page 19: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

thirty-nine 39

Using a Pan Balance and a Spring ScaleLESSON

2 � 8

Date Time

Weighing Things with a Pan Balance

1. Pick two objects. Which feels heavier?

2. Put one of these objects in the left panof the pan balance.

3. Put the other object in the right pan.

4. Show what happened on one of the pan-balance pictures.

� Write the names of the objectson the pan-balance picture.

� Draw a circle around the panwith the heavier object.

5. Repeat with other pairs of objects.

Weighing Things with a Spring Scale

1. Which is heavier: 1 ounce or 1 pound?

2. How many ounces are in 1 pound?

3. Put objects in the plastic bag on the spring scale.

4. Weigh them. Try to get a total weight of about 1 pound.

5. List the objects in the bag that weigh a total of about 1 pound.

scissorspencil

Page 20: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

Math Boxes LESSON

2 � 8

Date Time

40 forty

1. Fill in the missing numbers.

3. Write the sums.

10 � 7 �

10 � �12

� 10 � 20

� 10 � 41

6. What time is it?

:

What time will it be in 15 minutes?

:

4. Write these numbers in orderfrom smallest to largest. Circlethe smallest number and draw abox around the largest number.

243, 156, 326, 256

, , ,

5. Put an X on the digit in thetens place in each number.

362 1,043

1,209 596

13 °F

50

60

70

Unit

12 12

3

4567

8

9

1011

10

2. What temperature is it? Fill inthe circle next to the bestanswer.

A 61

B 62

C 64

D 78

Page 21: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

forty-one 41

Name-Collection BoxesLESSON

2 � 9

Date Time

1. Write 10 names in the 12 box.

3. Three names DO NOT belongin this box. Circle them. Writethe name of the box on the tag.

4. Make up a name-collection boxof your own.

x x xx x xx x x

1 lessthan10

2. Circle the names that DO NOTbelong in the 9 box.

12 � 3 8 � 09 � 0 5 � 4 � 119 � 10 ////\ ///

15 � 7

3 � 3 � 3 nine

x x xx x x half

adozen

9 � 3 12 � 8

3 � 3 ////\ //

5 � 3 � 2

10 � 4

12 9

Page 22: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

42 forty-two

Pan-Balance ProblemsLESSON

2 � 9

Date Time

Some food items and their weights are shown below.

� Pretend you will put one or more items in each pan.

� Pick items that would make the balances tilt the way they are shown on journal page 43.

� Write the name of each item in the pan you put it in.

� Write the weight of each item below the pan you put it in.

Try to use a variety of food items.

Salad Dressing Orange Walnuts Eggplant Gummy Worms1 ounce 8 ounces 3 ounces 15 ounces 4 ounces

Salt Lemon Flour Banana Potatoes1 pound 6 ounces 2 pounds 6 ounces 5 pounds

P O T A T O ES

Reminder: There are 16 ounces in 1 pound.

Page 23: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

forty-three 43

Pan-Balance Problems continuedLESSON

2 � 9

Date Time

Example:

Weight: Weight:

1. Weight: Weight:

2. Weight: Weight:

3. Weight: Weight:

4. Weight: Weight:

4 ounces8 ounces

orange

gummyworms

Page 24: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

Math Boxes LESSON

2 � 9

Date Time

44 forty-four

1. How much money?

5. Use your Pattern-BlockTemplate to draw a trapezoid.

2. Draw the hands to show thetime school begins.

12 12

3

4567

8

9

1011

.$

4. Write the label and add 3 more names.

6. How many books in all didPedro read on Saturday andSunday? Fill in the circle nextto the best answer.

A 10 B 5 C 6 D 11

� �

� �

� �

� �

3. Write the fact family.

26 27

55

16�,�

9 7 20 � 4 ////\ ////\ ////\ /

16

M Tu W Th F Sa Su

10

23456

Book

s R

ead

Day of the Week

Page 25: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

forty-five 45

Frames-and-Arrows ProblemsLESSON

2 � 10

Date Time

1. Fill in the empty frames.

2. Fill in the empty frames.

3. Fill in the empty frames.

4. Fill in the arrow rule.

5. Fill in the arrow rule and the empty frames.

Rule

�8 4

Rule

36�4

Rule

�4 15

Rule

14 11 8 5 2

Rule

20 30

Try This

Page 26: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

Math Boxes LESSON

2�10

Date Time

46 forty-six

1. Write 4 doubles facts that youknow.

6. Draw a rectangle around thedigit in the tens place.

3 4 9

4 0 6

2. Complete theFact Triangleand the factfamily. 3

12�,�

� �

� �

� �

� �

3. Write the fact family for the domino.

� �

� �

� �

� � 11

11

11

11

4. Fill in the missing frames.

5

11

Rule

�2

5. The total cost is 16¢. I pay with2 dimes. How much change doI get? Fill in the circle next tothe best answer.

A 36¢ B 6¢

C 4¢ D 20¢

26 27

25 98

88 10

Page 27: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

forty-seven 47

“What’s My Rule?”LESSON

2 � 11

Date Time

In Problems 1–4, follow the rule. Fill in the missing numbers.

1. 2.

3. 4.

What is the rule? Write it in the box. Then fill in any missing numbers.

5. 6.

in out

2 8

3 9

5

9

in out

6 2

8

10

5

in out

1

5 15

20

100

in out

6

3

5

12

in out

6 13

1 8

3

4

in out

12 10

6 4

11

6

Rule

out

in

�6

Rule

out

in

�4

Rule

out

in

�10

Rule

out

in

�5

Rule

out

in

Rule

out

in

Page 28: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

15

Math BoxesLESSON

2 � 11

Date Time

48 forty-eight

1. Show $1.50 three ways. Use‰, Í, and Â.

5. Draw a hexagon with yourPattern-Block Template.

There are sides.

2. What time is it?

:

What time will it be in 20 minutes?

:

4. Write 6 names for 15.

12 12

3

4567

8

9

1011

3. Write the fact family.

� �

� �

� �

� �

1 2 3 4

10

2345

Gla

sses

of

Lem

onad

e

Hour

6. How many cups of lemonadedid Dee sell in the third hour?

1626 27

54

17�,�

9 8

Page 29: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

Math Boxes LESSON

2 � 12

Date Time

forty-nine 49

1. Write the doubles fact.

Number model:

� �

3. Complete the fact family.

6. Circle the digit in the hundreds place.

1 2 8 9 7 2

4 6 5 2, 4 2 5

2. Fill in the sum onthe Fact Triangle.Write the factfamily.

5. The total cost is 75¢. I paywith $1.00. How much change do I get?

� �

� �

� �

� �

8 5�,�

� �

� �

� �

� �

14

35

Rule�7

4. Fill in the frames.

26 27 98

10

9�,�

6 3

Page 30: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

50 fifty

Subtract 9 or 8LESSON

2 � 13

Date Time

1. Subtract. Use the –9 and –8 shortcuts.

a. 13 � 9 � b. 16 � 9 � c. 14 � 8 �

d. � 12 � 8 e. � 17 � 9 f. 12 � 9 �

g. � 13 � 8 h. 11 � 9 � i. � 15 � 8

j. k. l.

2. Find the differences.

a. 43 � 9 � b. 56 � 8 � c. 65 � 9 �

d. 37 � 8 � e. 45 � 9 � f. 53 � 8 �

3. Solve.

a. 7 � � 9 b. 6 � � 8

11 � 8

17 � 8

15 � 9

Reminder: To find 18 � 9, think 18 � 10 � 1.

To find 18 � 8, think 18 � 10 � 2.

Try This

Page 31: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

Math BoxesLESSON

2 � 13

Date Time

1. How much money?

3. Find the turn-around facts.

3 � 4 �

4 � � 7

8 � 5 �

5 � � 13

5. Use your Pattern-BlockTemplate to draw a trapezoid.

Circle the three sides that arethe same length.

2. Show 8:50 P.M.

4. Write the label and add 3 more names.

6. What day did Molly swim themost laps? Fill in the circle nextto the best answer.

fifty-one 51

$ .

12 12

3

4567

8

9

1011

21 � 528 � 2XXVI

M Tu W Th F Sa Su

100

2030405060

Num

ber o

f Lap

s

Days Molly SwamA Wednesday B Sunday

C Saturday D Tuesday55

16

Page 32: LESSON Number Stories 2 1 2 Addition and Subtraction Facts.pdftwenty-one 21 LESSON2 Number Stories 1 Date Time Write an addition number story about what you see in the picture. Write

Math BoxesLESSON

2 � 14

Date Time

52 fifty-two

1. Selling Tickets for the School Fair

Who sold the least amountof tickets?

3. Put an X on the digit in thetens place for each numberbelow.

95

145

217

1,273

6. Fill in the missing frames.

2. Use the Pattern-BlockTemplate to draw a hexagon.

5. Write 6 names for $1.00.

John

Andrea

Jason

0 5 10 15 20 25 30 35 40Number of Tickets

12 12

3

4567

8

9

1011

7

35 21

Rule

�7

4. Draw the hands to show 7:45 A.M.

$1.00

54

10

98 99