2nd Grade | Unit 7
25 ¢
1¢
25¢ 1¢
¢ 25
11 12 1 2 10 3 9 4 8 7 6 5
1¢
MATH Student Book
2nd Grade | Unit 7
2+2 =
Unit 7 | ADD WITH CARRYING TO THE HUNDREDS’ PLACE
ADD WITH CARRYING TO THE HUNDREDS’ PLACE MATH 207 Introduction |3
1. Fractions...................................................................... 5 Story Problems |6 Addition and Subtraction |8
Patterns |10 Self Test 1 |11
2. Adding and Subtracting Fractions................... 13 Numbering |16 Addition and Subtraction |18
Self Test 2 |20
3. Number Order......................................................... 22 Addition with Carry |25 Measurements |27
Self Test 3 |30
4. Subtraction.............................................................. 32 Rounding |33 Money |34 Fractions |35
Skill Builders |38 Self Test 4 |40
5. Graphs....................................................................... 42 Number Words |43 Time |46
Self Test 5 |49
Teacher Notes |53 LIFEPAC Test |Pull-out
|1
ADD WITH CARRYING TO THE HUNDREDS’ PLACE | Unit 7
NOTE to teachers, parents, and students: As part of a continuing effort to improve the LIFEPAC curriculum, a new layout of this unit has been produced. The content of this unit has not changed but the page numbers referenced in the Teacher Notes of the Teacher’s Guide you are using may no longer correspond. One option is to follow through the activities in sequence and ignore the page numbers in the original Teacher Notes. The other option is to use the updated pages for the Teacher Notes that have been included in the back of this unit. These pages can be used to direct the instructional process as the student works through the unit. All of the pages of this unit are perforated so the updated Teacher Notes pages can be easily removed and referenced as needed.
Author: Carol Bauler, B.A. Editor: Alan Christopherson, M.S. Media Credits: Page 3: © nshpulya, iStock, Thinkstock; 27: © Svetlana Gucalo, Hemera, Thinkstock.
804 N. 2nd Ave. E. Rock Rapids, IA 51246-1759 © MCMXCVIII by Alpha Omega Publications, Inc. All rights reserved. LIFEPAC is a registered trademark of Alpha Omega Publications, Inc. All trademarks and/or service marks referenced in this material are the property of their respective owners. Alpha Omega Publications, Inc. makes no claim of ownership to any trademarks and/or service marks other than their own and their affiliates, and makes no claim of affiliation to any companies whose trademarks may be listed in this material, other than their own.
2|
Unit 7 | ADD WITH CARRYING TO THE HUNDREDS’ PLACE
ADD WITH CARRYING TO THE HUNDREDS’ PLACE
Learn with our friends! They’ll guide you through the LIFEPACs and keep the scores for you.
Hey, I’m Roxie. Let’s study!
Nice to see you. I’m Dr. Kirke.
Come along! I am Filmore. Tammy here. Are you ready to learn?
Introduction | 3
ADD WITH CARRYING TO THE HUNDREDS’ PLACE | Unit 7
Objectives Read these objectives. They will tell what you will be able to do when you have finished this LIFEPAC®. 1. 2. 3. 4. 5. 6.
I can read and solve story problems. I can write fraction problems in words. I can recognize number order in books. I can add with carrying to tens’ place or hundreds’ place. I can learn rounding that helps estimation. I can review and practice the things I have learned.
4 | Introduction
Unit 7 | ADD WITH CARRYING TO THE HUNDREDS’ PLACE
1. FRACTIONS Find the cardinal (counting) number. Write it after the ordinal (order) number. 1.1
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
fourteenth ______ seventeenth ______ twentieth ______ ninth ______ eighteenth ______ tenth ______ seventh ______
third ______ fifth ______ eleventh ______ fifteenth ______ fourth ______ sixth ______ thirteenth ______ twelfth ______ second ______ sixteenth ______ eighth ______ first ______ nineteenth ______
We use cardinal numbers and ordinal numbers when we say fractions.
1
one
The top number sounds like a cardinal number.
4 fourth The bottom number sounds like an ordinal number. We use a hyphen to write the fraction:
one-fourth
Section 1 | 5
ADD WITH CARRYING TO THE HUNDREDS’ PLACE | Unit 7
1.2
Write the fractions in words.
_
1 __ 3
_
2 __ 5
_
9 ___ 16
_
4 __ 7
_____________________ _____________________ _____________________ _____________________
3 ___ 11
_____________________
5 __ 8
_____________________
7 ___ 12
_____________________
8 __ 9
_____________________
Story Problems Read the story. Write the answer.
The first week, John’s mother will drive the children to school on Monday, Wednesday, and Friday. Paul’s mother will drive Tuesday and Thursday. The second week they will exchange days.
6 | Section 1
Friday
Thursday
How many years before Patty can go to school? ________
Wednesday
_
Tuesday
John and Paul are planning their first day of school. John’s sister Patty wants to go to school, too. Patty is 3 years old. She must be 5 to go school.
Monday
1.3
week 1
1
2
3
4
5
week 2
1
2
3
4
5
week 3
1
2
3
4
5
Unit 7 | ADD WITH CARRYING TO THE HUNDREDS’ PLACE
Follow the pattern. What days will John’s mother drive the third week? ________________________________
What days will Paul’s mother drive the third week?
________________________________
John and Paul each wanted to buy a backpack. The backpacks cost $3.22 each. How much did the backpacks cost altogether? ____________
The boys had saved $8.96. How much change did they receive when they paid for the backpacks?
____________
Together, John and Paul needed 6 pencils for school. They had 2. How many more did they need to buy?
____________
The pencils cost 10¢ each. Did John and Paul have enough money for the pencils? ____________
How much money did John and Paul have after they paid for the backpacks and pencils?
____________
Section 1 | 7
ADD WITH CARRYING TO THE HUNDREDS’ PLACE | Unit 7
Addition and Subtraction Add. 1.4
3 6 + 2
7 2 + 5
14 53 + 21
31 46 + 22
42 20 + 16
25 + 32
86 + 42
613 + 281
322 + 163
542 + 317
65 + 25
43 + 29
27 + 36
1.5
Add ones. Carry. Add tens. Add hundreds.
237 + 128
735 + 249
253 + 528
436 + 216
374 + 518
429 + 226
537 + 313
245 + 427
8 | Section 1
26 + 47
82 + 19
Unit 7 | ADD WITH CARRYING TO THE HUNDREDS’ PLACE
Subtract. 1.6
26 − 3
48 − 5
683 − 241
27 − 16
795 − 413
75 − 23
859 − 605
88 − 22
761 − 251
Borrow from tens. Add to ones. Subtract. 1.7
71 − 36
82 − 54
65 − 47
43 − 28
64 − 25
52 − 38
62 − 29
96 − 57
55 − 27
32 − 19
84 − 56
41 − 35
Section 1 | 9
ADD WITH CARRYING TO THE HUNDREDS’ PLACE | Unit 7 220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Patterns 1.8
220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Find the pattern. Write or draw what comes next.
30°F
_
4 + 8 12
40°F
50°F
_________________ 8 + 4 12
_
797,
_
10,
12 − 4 8
798, 8,
_________________
799,
_________________
4,
_________________
6,
_
_________________
_
11 10 9
_
2 __ 5
1 __ 5 12
1
8
2 3 4
7 6 5
11 10 9
_
12
3 __ 5
1
8
2 3 4
7 6 5
11 10 9
_
12
_________________
1
8
2 3 4
7 6 5
_________________
Before you take the Self Test, study what you have read and done. The Self Test will check what you remember. 10 | Section 1
Unit 7 | ADD WITH CARRYING TO THE HUNDREDS’ PLACE
SELF TEST 1 Each answer = 1 point, except where otherwise noted 1.01_
Write the fractions in words.
_
2 __ 3
_
4 __ 5
1.02_
Add or subtract.
32 + 27
243 + 125
85 + 26
248 + 127
57 − 26
39 − 29
62 − 24
91 − 46
1.03_
Find the pattern. Write what comes next.
6 + 8 = 14
______________________
1 __ 7
______________________
______________________
2 __ 8
______________________
8 + 6 = 14
14 − 6 = 8 ______________
Section 1 | 11
ADD WITH CARRYING TO THE HUNDREDS’ PLACE | Unit 7
1.04_
Read the story. Work the problem. (2 points)
Sue read 2 books the first week, 4 books the second week, and 3 books the third week. How many books did she read altogether?
12 15 12 | Section 1
Teacher Check
_____________ Initial
Date
____________
My Score
MAT0207 – Feb ‘17 Printing 804 N. 2nd Ave. E. Rock Rapids, IA 51246-1759 800-622-3070 www.aop.com
ISBN 978-1-58095-377-1
9 781580 953771
1¢
25¢ 1¢
¢ 25
11 12 1 2 10 3 9 4 8 7 6 5
1¢
MATH Student Book
2nd Grade | Unit 7
2+2 =
Unit 7 | ADD WITH CARRYING TO THE HUNDREDS’ PLACE
ADD WITH CARRYING TO THE HUNDREDS’ PLACE MATH 207 Introduction |3
1. Fractions...................................................................... 5 Story Problems |6 Addition and Subtraction |8
Patterns |10 Self Test 1 |11
2. Adding and Subtracting Fractions................... 13 Numbering |16 Addition and Subtraction |18
Self Test 2 |20
3. Number Order......................................................... 22 Addition with Carry |25 Measurements |27
Self Test 3 |30
4. Subtraction.............................................................. 32 Rounding |33 Money |34 Fractions |35
Skill Builders |38 Self Test 4 |40
5. Graphs....................................................................... 42 Number Words |43 Time |46
Self Test 5 |49
Teacher Notes |53 LIFEPAC Test |Pull-out
|1
ADD WITH CARRYING TO THE HUNDREDS’ PLACE | Unit 7
NOTE to teachers, parents, and students: As part of a continuing effort to improve the LIFEPAC curriculum, a new layout of this unit has been produced. The content of this unit has not changed but the page numbers referenced in the Teacher Notes of the Teacher’s Guide you are using may no longer correspond. One option is to follow through the activities in sequence and ignore the page numbers in the original Teacher Notes. The other option is to use the updated pages for the Teacher Notes that have been included in the back of this unit. These pages can be used to direct the instructional process as the student works through the unit. All of the pages of this unit are perforated so the updated Teacher Notes pages can be easily removed and referenced as needed.
Author: Carol Bauler, B.A. Editor: Alan Christopherson, M.S. Media Credits: Page 3: © nshpulya, iStock, Thinkstock; 27: © Svetlana Gucalo, Hemera, Thinkstock.
804 N. 2nd Ave. E. Rock Rapids, IA 51246-1759 © MCMXCVIII by Alpha Omega Publications, Inc. All rights reserved. LIFEPAC is a registered trademark of Alpha Omega Publications, Inc. All trademarks and/or service marks referenced in this material are the property of their respective owners. Alpha Omega Publications, Inc. makes no claim of ownership to any trademarks and/or service marks other than their own and their affiliates, and makes no claim of affiliation to any companies whose trademarks may be listed in this material, other than their own.
2|
Unit 7 | ADD WITH CARRYING TO THE HUNDREDS’ PLACE
ADD WITH CARRYING TO THE HUNDREDS’ PLACE
Learn with our friends! They’ll guide you through the LIFEPACs and keep the scores for you.
Hey, I’m Roxie. Let’s study!
Nice to see you. I’m Dr. Kirke.
Come along! I am Filmore. Tammy here. Are you ready to learn?
Introduction | 3
ADD WITH CARRYING TO THE HUNDREDS’ PLACE | Unit 7
Objectives Read these objectives. They will tell what you will be able to do when you have finished this LIFEPAC®. 1. 2. 3. 4. 5. 6.
I can read and solve story problems. I can write fraction problems in words. I can recognize number order in books. I can add with carrying to tens’ place or hundreds’ place. I can learn rounding that helps estimation. I can review and practice the things I have learned.
4 | Introduction
Unit 7 | ADD WITH CARRYING TO THE HUNDREDS’ PLACE
1. FRACTIONS Find the cardinal (counting) number. Write it after the ordinal (order) number. 1.1
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
fourteenth ______ seventeenth ______ twentieth ______ ninth ______ eighteenth ______ tenth ______ seventh ______
third ______ fifth ______ eleventh ______ fifteenth ______ fourth ______ sixth ______ thirteenth ______ twelfth ______ second ______ sixteenth ______ eighth ______ first ______ nineteenth ______
We use cardinal numbers and ordinal numbers when we say fractions.
1
one
The top number sounds like a cardinal number.
4 fourth The bottom number sounds like an ordinal number. We use a hyphen to write the fraction:
one-fourth
Section 1 | 5
ADD WITH CARRYING TO THE HUNDREDS’ PLACE | Unit 7
1.2
Write the fractions in words.
_
1 __ 3
_
2 __ 5
_
9 ___ 16
_
4 __ 7
_____________________ _____________________ _____________________ _____________________
3 ___ 11
_____________________
5 __ 8
_____________________
7 ___ 12
_____________________
8 __ 9
_____________________
Story Problems Read the story. Write the answer.
The first week, John’s mother will drive the children to school on Monday, Wednesday, and Friday. Paul’s mother will drive Tuesday and Thursday. The second week they will exchange days.
6 | Section 1
Friday
Thursday
How many years before Patty can go to school? ________
Wednesday
_
Tuesday
John and Paul are planning their first day of school. John’s sister Patty wants to go to school, too. Patty is 3 years old. She must be 5 to go school.
Monday
1.3
week 1
1
2
3
4
5
week 2
1
2
3
4
5
week 3
1
2
3
4
5
Unit 7 | ADD WITH CARRYING TO THE HUNDREDS’ PLACE
Follow the pattern. What days will John’s mother drive the third week? ________________________________
What days will Paul’s mother drive the third week?
________________________________
John and Paul each wanted to buy a backpack. The backpacks cost $3.22 each. How much did the backpacks cost altogether? ____________
The boys had saved $8.96. How much change did they receive when they paid for the backpacks?
____________
Together, John and Paul needed 6 pencils for school. They had 2. How many more did they need to buy?
____________
The pencils cost 10¢ each. Did John and Paul have enough money for the pencils? ____________
How much money did John and Paul have after they paid for the backpacks and pencils?
____________
Section 1 | 7
ADD WITH CARRYING TO THE HUNDREDS’ PLACE | Unit 7
Addition and Subtraction Add. 1.4
3 6 + 2
7 2 + 5
14 53 + 21
31 46 + 22
42 20 + 16
25 + 32
86 + 42
613 + 281
322 + 163
542 + 317
65 + 25
43 + 29
27 + 36
1.5
Add ones. Carry. Add tens. Add hundreds.
237 + 128
735 + 249
253 + 528
436 + 216
374 + 518
429 + 226
537 + 313
245 + 427
8 | Section 1
26 + 47
82 + 19
Unit 7 | ADD WITH CARRYING TO THE HUNDREDS’ PLACE
Subtract. 1.6
26 − 3
48 − 5
683 − 241
27 − 16
795 − 413
75 − 23
859 − 605
88 − 22
761 − 251
Borrow from tens. Add to ones. Subtract. 1.7
71 − 36
82 − 54
65 − 47
43 − 28
64 − 25
52 − 38
62 − 29
96 − 57
55 − 27
32 − 19
84 − 56
41 − 35
Section 1 | 9
ADD WITH CARRYING TO THE HUNDREDS’ PLACE | Unit 7 220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Patterns 1.8
220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Find the pattern. Write or draw what comes next.
30°F
_
4 + 8 12
40°F
50°F
_________________ 8 + 4 12
_
797,
_
10,
12 − 4 8
798, 8,
_________________
799,
_________________
4,
_________________
6,
_
_________________
_
11 10 9
_
2 __ 5
1 __ 5 12
1
8
2 3 4
7 6 5
11 10 9
_
12
3 __ 5
1
8
2 3 4
7 6 5
11 10 9
_
12
_________________
1
8
2 3 4
7 6 5
_________________
Before you take the Self Test, study what you have read and done. The Self Test will check what you remember. 10 | Section 1
Unit 7 | ADD WITH CARRYING TO THE HUNDREDS’ PLACE
SELF TEST 1 Each answer = 1 point, except where otherwise noted 1.01_
Write the fractions in words.
_
2 __ 3
_
4 __ 5
1.02_
Add or subtract.
32 + 27
243 + 125
85 + 26
248 + 127
57 − 26
39 − 29
62 − 24
91 − 46
1.03_
Find the pattern. Write what comes next.
6 + 8 = 14
______________________
1 __ 7
______________________
______________________
2 __ 8
______________________
8 + 6 = 14
14 − 6 = 8 ______________
Section 1 | 11
ADD WITH CARRYING TO THE HUNDREDS’ PLACE | Unit 7
1.04_
Read the story. Work the problem. (2 points)
Sue read 2 books the first week, 4 books the second week, and 3 books the third week. How many books did she read altogether?
12 15 12 | Section 1
Teacher Check
_____________ Initial
Date
____________
My Score
MAT0207 – Feb ‘17 Printing 804 N. 2nd Ave. E. Rock Rapids, IA 51246-1759 800-622-3070 www.aop.com
ISBN 978-1-58095-377-1
9 781580 953771
