533 536 CH12 L2D 112051 - MHSchool€¦ · Name Multi-Part Lesson PART B C E F 12-2 A D ... Chapter...
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Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc. Name Multi-Part Lesson PART C B E F 12-2 A D Get Ready Main Idea I will break apart numbers to add. Add Another Way Robin and Tony added 36 + 25. They got the same answer, but they did the problem in different ways. Robin’s Way: 36 + 25 30 + 6 + 20 + 5 30 + 20 = 50 6 + 5 = 11 50 + 11 = 61 Tony’s Way: 36 + 25 4 + 21 36 + 4 + 21 40 + 21 = 61 Use and . Break apart the numbers. Write how many in all. 1. 42 + 23 + = + = + = 2. 56 + 12 + + = + = 3. How does it help to break a number apart before adding? Check Check Chapter 12 • Lesson 2D five hundred thirty-three 533
Transcript of 533 536 CH12 L2D 112051 - MHSchool€¦ · Name Multi-Part Lesson PART B C E F 12-2 A D ... Chapter...
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Name Multi-Part Lesson
PART CB E F12-2
A D
Get ReadyMain IdeaI will break apart numbers to add.
Add Another Way
Robin and Tony added 36 + 25. They got the same answer, but they did the problem in different ways.
Robin’s Way:
36 + 25
30 + 6 + 20 + 5
30 + 20 = 50
6 + 5 = 11
50 + 11 = 61
Tony’s Way:
36 + 25
4 + 21
36 + 4 + 21
40 + 21 = 61
Use
C08-040A-112052
and
C08-040A-112052
. Break apart the numbers. Write how many in all. 1. 42 + 23
+ =
+ =
+ =
2. 56 + 12
+
+ =
+ =
3. How does it help to break a number apart before adding?
CheckCheckCheck
Chapter 12 • Lesson 2D five hundred thirty-three 533
533_536_CH12_L2D_112051.indd 533 5/20/09 5:28:08 PM
Copyright © M
acmillan/M
cGraw-Hill, a division of The M
cGraw-Hill Com
panies, Inc.Practice
Use
C08-040A-112052
and
C08-040A-112052
. Break apart the numbers. Write how many in all. 4. 36 + 13
+ =
+ =
+ =
5. 75 + 21
+ =
+ =
+ =
6. 37 + 23
+ =
+ =
+ =
7. 41 + 35
+ =
+ =
+ =
8. 82 + 17
+ =
+ =
+ =
Copyright © M
acmillan/M
cGraw-Hill, a division of The M
cGraw-Hill Com
panies, Inc.
534 five hundred thirty-four
533_536_CH12_L2D_112051.indd 534 5/20/09 5:28:13 PM
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© M
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/McG
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-Hill
, a d
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raw
-Hill
Com
pani
es, I
nc.
Name
Use
C08-040A-112052
and
C08-040A-112052
. Break apart the numbers. Write how many in all.
9. 44 + 27
6
+
21
44 + 6 + 21
50 + 21 = 71
10. 37 + 36
+
+ +
+ =
11. 19 + 14
+
+ +
+ =
12. 61 + 39
+
+ +
+ =
13. 46 + 46
+
+ +
+ =
14. 74 + 16
+
+ +
+ =
Chapter 12 • Lesson 2D five hundred thirty-five 535
533_536_CH12_L2D_112051.indd 535 5/20/09 5:28:16 PM
Copyright © M
acmillan/M
cGraw-Hill, a division of The M
cGraw-Hill Com
panies, Inc.
Solve. Use
C08-040A-112052
and
C08-040A-112052
to help.
15. Dario had 34 crayons. Allison had 27 crayons. How many crayonsdid they have in all?
crayons
16. There were 19 people in line for a ride. 22 more people got in line. How many people are in line now?
people
17. Dave found 44 seashells. Chris found the same number of seashells. How many seashells did they find?
seashells
18. How do you count on when adding two numbers?
Math at Home Activity: Show your child the number 32. Have him or her draw cubes to show the number in a tens and ones chart. Have your child add the number 24 to the original number.
C12-080A-112052-V
?
19 22
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