Splash Screen

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Splash Screen
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Chapter Menu
Addition
2

• Lesson 2-1 Addition Properties
• Lesson 2-2 Problem-Solving Skill Estimate or
  Exact Answer
• Lesson 2-3 Estimate Sums
• Lesson 2-4 Two-Digit Addition
• Lesson 2-5 Add Money
• Lesson 2-6 Problem-Solving Investigation Choose
  a Strategy
• Lesson 2-7 Three-Digit Addition
• Lesson 2-8 Add Greater Numbers

3
Lesson 1 Menu
Five-Minute Check (over Chapter 1) Main Idea and
Vocabulary California Standards Key Concept
Properties Example 1 Use Properties to
Add Example 2 Associative Property
4
Lesson 1 MI/Vocab

• I will use addition properties to add whole
  numbers.

• Commutative Property of Addition
• Identity Property of Addition
• Associative Property of Addition

5
Lesson 1 Standard
Standard 3NS2.1 Find the sum or
difference of two whole numbers between 0 and
10,000.
Standard 3AF1.1 Represent relationships
of quantities in the form of mathematical
expressions, equations, or inequalities.
6
Lesson 1 Key Concept 1
7
Lesson 1 Ex1
Find the sum. Identify the property.
8
Lesson 1 Ex1
Answer The sum is 12. The order in which the
numbers are added does not change the sum. This
is the Commutative Property of Addition.
9
Lesson 1 CYP1
Which property is shown here? 4 3 3 4

1. Identity Property of Addition
2. Commutative Property of Addition
3. Associative Property of Addition
4. Additive Property

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Lesson 1 Ex2
Jon has 7 pencils, 5 pens, and 3 highlighters.
How many writing utensils does Jon have?
7 5 3
5 7 3
5 (7 3)
5 10
15
Answer So, Jon has 15 writing utensils in all.
11
Lesson 1 CYP2
Monica has 3 red crayons, 6 blue crayons, and 7
purple crayons. How many crayons does Monica have
in all?

1. 15 crayons
2. 16 crayons
3. 17 crayons
4. 18 crayons

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End of Lesson 1
13
Lesson 2 Menu
Five-Minute Check (over Lesson 2-1) Main Idea
California Standards Example 1 Problem-Solving
Skill
14
Lesson 2 MI/Vocab

• I will decide whether an estimate or an exact
  answer is needed to solve a problem.

15
Lesson 2 Standard 1
Standard 3MR2.5 Indicate the relative advantages
of exact and approximate solutions to problems
and give answers to a specified degree of
accuracy.
Standard 3NS2.1 Find the sum or
difference of two whole numbers between 0 and
10,000.
16
Lesson 2 Ex1
To celebrate Arbor Day, a town planted trees one
weekend. On Saturday, 53 trees were planted.
Another 38 trees were planted on Sunday. About
how many trees were planted in all?
17
Lesson 2 Ex1
Understand
What facts do you know?

• On Saturday, 53 trees were planted.
• On Sunday, 38 trees were planted.

What do you need to find?

• Find about how many trees were planted in all.

18
Lesson 2 Ex1
Plan
You need to decide whether to estimate or find an
exact answer. Since the question asks about how
many trees were planted, you need to estimate.
19
Lesson 2 Ex1
Solve
First, find about how many trees were planted
each day. Estimate by rounding to the closest ten.
20
Lesson 2 Ex1
Solve
Then, add.
50
40

90
Answer So, about 90 trees were planted in all.
21
Lesson 2 Ex1
Check
Look back at the problem. If the question asked
for an exact answer you would find 53 38 91.
The estimate is close to the exact answer. So,
the estimate makes sense.
22
End of Lesson 2
23
Lesson 3 Menu
Five-Minute Check (over Lesson 2-2) Main Idea and
Vocabulary California Standards Example 1
Estimate by Rounding Example 2 Estimate by
Rounding Example 3 Estimate by Rounding
24
Lesson 3 MI/Vocab

• I will estimate sums using rounding and front-end
  estimation.

• estimate
• front-end estimation

25
Lesson 3 Standard 1
Standard 3NS1.4 Round off numbers to 10,000 to
the nearest ten, hundred, and thousand.
Standard 3MR2.5 Indicate the relative
advantages of exact and approximate solutions to
problems and give answers to a specified degree
of accuracy.
26
Lesson 3 Ex1
Kevin found 14 snails in his backyard after a
rain. The next day he found 28 more snails. About
how many snails did he find in all?
To find the total, find 14 28. Since the
question says about how many people, estimate 14
28.
Step 1 Round each number to the nearest ten.
27
Lesson 3 Ex1
Step 2 Add.
40
Answer So, Kevin found about 40 snails in all.
28
Lesson 3 CYP1
Joyce invited 16 girls to her birthday party. She
invited 11 boys. About how many people did she
invite to her birthday party in all?

1. 27 people
2. 35 people
3. 20 people
4. 30 people

29
Lesson 3 Ex2
Samir rode his bike 28 miles on Monday and 43
miles on Tuesday. Estimate how many miles he rode
on those two days.
You need to estimate 28 43.
70
Answer So, Samir rode his bike about 70 miles.
30
Lesson 3 CYP2
Devon wrote 27 sentences for homework on Monday
and 14 sentences for homework on Wednesday.
Estimate how many sentences he wrote on those two
days.

1. 40 sentences
2. 41 sentences
3. 30 sentences
4. 50 sentences

31
Lesson 3 Ex3
There were 65 clowns on the circus floor and 14
acrobats. About how many people were on the
circus floor?
You need to estimate 65 14.
80
Answer So, there were about 80 people on the
circus floor.
32
Lesson 3 CYP3
There are 17 roller coasters and 32 other rides
at Cedar Point Amusement Park. About how many
rides are there altogether?

1. 49 rides
2. 50 rides
3. 40 rides
4. 45 rides

33
End of Lesson 3
34
Lesson 4 Menu
Five-Minute Check (over Lesson 2-3) Main Idea and
Vocabulary California Standards Example 1 Add
with Regrouping Example 2 Partial Sums Example
3 Add without Regrouping
35
Lesson 4 MI/Vocab

• I will regroup ones and add two-digit numbers.

• regroup

36
Lesson 4 Standard 1
Standard 3NS2.1 Find the sum or
difference of two whole numbers between 0 and
10,000.
Standard 3MR2.1 Use estimation to verify the
reasonableness of calculated results.
37
Lesson 4 Ex1
Jung found 17 seashells for his collection. His
mother found six more. How many seashells do they
have in all?
You need to find the sum of 17 and 6.
Step 1 Add the ones.
1
17
6

3
38
Lesson 4 Ex1
Step 2 Add the tens.
2
Answer Jung and his mother found 23 seashells.
Check for Reasonableness
Compare 23 to the estimate. The answer is
reasonable.
39
Lesson 4 CYP1
Jolene collected 19 rubber bands. John collected
8. How many rubber bands do they have in all?

1. 27 rubber bands
2. 25 rubber bands
3. 23 rubber bands
4. 30 rubber bands

40
Lesson 4 Ex2
There are 34 girls and 37 boys in all the third
grade classes. What is the total number of boys
and girls in the third grade?
You need to add 34 and 37. You can use partial
sums.
41
Lesson 4 Ex2
34
37

Add the tens.
60
Add the ones.
11

Add the partial sums.
71
Answer There are 71 boys and girls in the third
grade.
Check for Reasonableness
Compare 71 to the estimate. The answer is
reasonable.
42
Lesson 4 CYP2
In a survey of the third grade, 48 students had
dogs and 24 had cats. What is the total number
of dogs and cats owned by the third graders?

1. 70
2. 60
3. 84
4. 72

43
Lesson 4 Ex3
Find the sum of 74 24.
4 ones 4 ones 8 ones
74
7 tens 2 tens 9 tens
24

8
9
Answer 98
44
Lesson 4 Ex3
Check for Reasonableness
Compare 98 to the estimate. The answer is
reasonable.
45
Lesson 4 CYP3
Find the sum of 45 33.

1. 80
2. 88
3. 78
4. 70

46
End of Lesson 4
47
Lesson 5 Menu
Five-Minute Check (over Lesson 2-4) Main Idea and
Vocabulary California Standards Example 1 Add
Money Example 2 Add Money
48
Lesson 5 MI/Vocab

• I will learn to add money.

• dollar sign ()
• cents sign ()
• decimal point

49
Lesson 5 Standard 1
Standard 3NS3.3 Solve problems
involving addition, subtraction, multiplication,
and division of money amounts in decimal notation
and multiply and divide money amounts in decimal
notation by using whole-number multipliers and
divisors.
50
Lesson 5 Standard 2
Standard 3MR2.1 Use estimation to verify the
reasonableness of calculated results.
51
Lesson 5 Ex1
Alicia bought a pen for 61 and an eraser for
15. How much did she spend for the two items?
You need to find the sum of 61 15.
52
Lesson 5 Ex1
One Way Add Cents
Add the ones.
Add the tens.
7

Place the cents sign after the sum.
6
53
Lesson 5 Ex1
Another Way Add Dollars
0.76
Answer So, Alicia paid 76 or 0.76 for the two
items.
54
Lesson 5 Ex1
Check for Reasonableness
76 is close to the estimate of 80. So, the
answer is reasonable.
55
Lesson 5 CYP1
Seth bought a lollipop for 52 and a pack of gum
for 36. How much money did he spend at the candy
store?

1. 90
2. 0.85
3. 0.88
4. 80

56
Lesson 5 Ex2
Yin-Chin bought two DVDs. One cost 16, and the
other was on sale for 6. How much did Yin-Chin
spend for the two DVDs?
You need to add 16 and 6.
57
Lesson 5 Ex2
1
Add the ones and regroup.
Add the tens.
Place the dollar sign before the sum.
2
2

Answer So, Yin-Chin spent 22 on the two DVDs.
Check for Reasonableness
The answer 22 is close to the estimate of 30.
So, the answer is reasonable.
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Lesson 5 CYP2
Sadako paid 27 for a CD at the store, and 14
for a CD online. How much did she spend on the
two CDs?

1. 41
2. 31
3. 50
4. 51

59
End of Lesson 5
60
Lesson 6 Menu
Five-Minute Check (over Lesson 2-5) Main
Idea California Standards Example 1
Problem-Solving Investigation
61
Lesson 6 MI/Vocab

• I will choose the best strategy to solve a
  problem.

62
Lesson 6 Standard 1
Standard 3MR1.1 Analyze problems by identifying
relationships, distinguishing relevant from
irrelevant information, sequencing and
prioritizing information, and observing patterns.
63
Lesson 6 Standard 2
Standard 3NS2.1 Find the sum or
difference of two whole numbers between 0 and
10,000.
64
Lesson 6 Ex1
KIRI My father and I needed to catch at least 10
fish. During the first hour, we caught 9 fish but
threw 4 back. The second hour we caught 16 fish
and threw 9 back. YOUR MISSION Find out if they
caught and kept at least 10 fish.
65
Lesson 6 Ex1
Understand
What facts do you know?

• During the first hour, they caught 9 fish but
  threw 4 back.
• During the second hour, they caught 16 fish and
  threw 9 back.

What do you need to find?

• Find out if they caught and kept at least 10 fish.

66
Lesson 6 Ex1
Plan
You need to find an exact answer. You can use
addition and subtraction.
67
Lesson 6 Ex1
Solve
First, subtract to find out how many fish they
kept.
Hour One 9 4
5
Hour Two 16 9
7
68
Lesson 6 Ex1
Solve
Next, add the total for each hour.
Answer Kiri and her father caught and kept 12
fish.
69
Lesson 6 Ex1
Check
Look back at the problem. Yes, Kiri and her
father caught and kept at least 10 fish. They
caught 12.
70
End of Lesson 6
71
Lesson 7 Menu
Five-Minute Check (over Lesson 2-6) Main
Idea California Standards Example 1 Add with
Regrouping Example 2 Add with Regrouping
Add Three-Digit Numbers
72
Lesson 7 MI/Vocab

• I will add three-digit numbers and use estimation
  to check for reasonableness.

73
Lesson 7 Standard
Standard 3NS3.3 Solve problems
involving addition, subtraction, multiplication,
and division of money amounts in decimal notation
and multiply and divide money amounts in decimal
notation by using whole-number multipliers and
divisors.
74
Lesson 7 Standard
Standard 3MR2.1 Use estimation to
verify the reasonableness of calculated results.
75
Lesson 7 Ex1
Lynda used 125 minutes of her cell phone minutes
last week and 37 minutes this week. How many
minutes has she used altogether?
You need to add 125 37.
Estimate
76
Lesson 7 Ex1
Step 1 Add the ones.
1
5 ones 7 ones 12 ones
125
Regroup 12 ones as 1 ten and 2 ones.
37

2
Step 2 Add the tens and hundreds.
1 ten 2 tens 3 tens 6 tens
Bring the 1 hundred down.
6
1
Answer Lynda has used 162 minutes altogether.
77
Lesson 7 Ex1
Check for Reasonableness
Since 162 is close to the estimate of 170, the
answer is reasonable.
78
Lesson 7 CYP1
Jesse used 143 minutes of his game trial period
Monday and 47 minutes Tuesday. How many minutes
has he used altogether?

1. 200 minutes
2. 189 minutes
3. 190 minutes
4. 100 minutes

79
Lesson 7 Ex2
Celli bought a book for 4.13 and a bookmark for
2.48. How much did she spend?
Step 1 Add the ones.
1
3 ones 8 ones 11 ones
4.13
Regroup 11 ones as 1 ten and 1 one.
2.48
1
80
Lesson 7 Ex2
Step 2 Add the tens.
1 ten 1 ten 4 tens 6 tens
6
Step 3 Add the hundreds.
4 hundreds 2 hundreds 6 hundreds
6.
Answer Celli spent 6.61.
81
Lesson 7 CYP2
Julian spent 6.15 at the grocery store and 2.96
at the gas station. How much did he spend in all?

1. 9.01
2. 9.11
3. 10.05
4. 8.99

82
End of Lesson 7
83
Lesson 8 Menu
Five-Minute Check (over Lesson 2-7) Main
Idea California Standards Example 1 Real-World
Example Example 2 Addition Methods Example 3
Addition of Money
84
Lesson 8 MI/Vocab/Standard 1

• I will add three- and four-digit numbers with
  regrouping.

85
Lesson 8 Standard 1
Standard 3NS3.3 Solve problems
involving addition, subtraction, multiplication,
and division of money amounts in decimal notation
and multiply and divide money amounts in decimal
notation by using whole-number multipliers and
divisors.
86
Lesson 8 Standard 2
Standard 3MR2.1 Use estimation to
verify the reasonableness of calculated results.
87
Lesson 8 Ex1
In the library, there are 3,276 history books and
2,745 science books. What is the total number of
these two types of books?
You need to find 3,276 2,745.
Estimate
88
Lesson 8 Ex1
One Way Partial Sums
11
Add ones.
110
Add tens.
900
Add hundreds.
5,000
Add thousands.
6,021
89
Lesson 8 Ex1
Another Way Expanded Notation
5,000 900 110 11
900
110
11
6,021
Answer 6,021 books
90
Lesson 8 CYP1
At the video store there are 3,567 comedies and
2,655 dramas. What is the total number of these
two types of videos?

1. 7,225
2. 6,222
3. 8,032
4. 5,111

91
Lesson 8 Ex2
Californias tidal shoreline is 3,427 miles long.
If you traveled from one end to the other and
back, how many miles would you have traveled?
Solve using at least two different methods.
You need to find 3,427 3,427.
Estimate
92
Lesson 8 Ex2
One Way Partial Sums
14
Add ones.
40
Add tens.
800
Add hundreds.
6,000
Add thousands.
6,854
93
Lesson 8 Ex2
Another Way Expanded Notation
6,000 800 40 14
800
40
14
6,854
Answer 6,854 miles
94
Lesson 8 CYP2
It is 1,927 miles from Houston, Texas to San
Francisco, California. If you traveled from one
city to the other and back, how many miles would
you have traveled?

1. 3,004 miles
2. 2,954 miles
3. 6,004 miles
4. 3,854 miles

95
Lesson 8 Ex3
Melody and her mother went to the botanical
gardens. Her ticket cost 7.50 and her mothers
ticket cost 14.75. Find the total cost.
To add money, add as you would with whole numbers.
96
Lesson 8 Ex3
1
1
Line up the decimal points.
14.75
Add.
7.50

5
2
2
2

.
Place the dollar sign in front of the dollars.
Place the decimal point in the answer.
Answer The total cost was 22.25.
Check for Reasonableness
Since 22.25 is close to the estimate of 20, the
answer is reasonable.
97
Lesson 8 CYP3
Theresa and her uncle went to the zoo. Her ticket
cost 9.50 and her uncles cost 21.25. Find the
total cost.

1. 29.50
2. 30.00
3. 30.75
4. 31.00

98
End of Lesson 8
99
CR Menu
Addition
2
Five-Minute Checks Math Tool Chest Image Bank
Add Three-Digit Numbers
100
IB Instructions
To use the images that are on the following four
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Image Bank slides. 3. Select an image, copy it,
and paste it into your presentation.
101
IB 1
102
IB 2
103
IB 3
104
IB 4
105
5Min Menu
Addition
2
Lesson 2-1 (over Chapter 1) Lesson 2-2 (over
Lesson 2-1) Lesson 2-3 (over Lesson 2-2) Lesson
2-4 (over Lesson 2-3) Lesson 2-5 (over Lesson
2-4) Lesson 2-6 (over Lesson 2-5) Lesson
2-7 (over Lesson 2-6) Lesson 2-8 (over Lesson 2-7)
106
5Min 1-1
(over Chapter 1)
Round 4,571 to the nearest thousand.

1. 4,000
2. 5,500
3. 5,550
4. 5,000

107
5Min 1-2
(over Chapter 1)
Round 1,278 to the nearest thousand.

1. 1,000
2. 1,200
3. 100
4. 1,300

108
5Min 1-3
(over Chapter 1)
Round 7,911 to the nearest thousand.

1. 7,000
2. 7,900
3. 8,000
4. 900

109
5Min 1-4
(over Chapter 1)
Round 5,449 to the nearest thousand.

1. 5,000
2. 5,500
3. 6,000
4. 5,400

110
5Min 2-1
(over Lesson 2-1)
Find the sum. Tell which property you used.

1. 4 Commutative Property
2. 14 Commutative Property
3. 14 Associative Property
4. 4 Associative Property

111
5Min 2-2
(over Lesson 2-1)
Find the sum. Tell which property you used.

1. 6 Identity Property
2. 6 Commutative Property
3. 0 Commutative Property
4. 0 Associative Property

112
5Min 2-3
(over Lesson 2-1)
Find the sum. Tell which property you used.

1. 7 Associative Property
2. 13 Identity Property
3. 13 Associative Property
4. 20 Associative Property

113
5Min 3-1
(over Lesson 2-2)
Tell whether you need an estimate or an exact
answer. Then solve. The school van holds 24
students. Mrs. Lazo has 9 girls and 17 boys in
her class. Will the van hold all of the students
in the class?

1. estimate no
2. estimate yes
3. exact answer no
4. exact answer yes

114
5Min 4-1
(over Lesson 2-3)
Estimate the sum using rounding.
37 41

1. 70
2. 90
3. 80
4. 60

115
5Min 4-2
(over Lesson 2-3)
Estimate the sum using rounding.
65 18

1. 90
2. 88
3. 83
4. 80

116
5Min 4-3
(over Lesson 2-3)
Estimate the sum using front-end estimation.
18 29

1. 50
2. 47
3. 40
4. 30

117
5Min 4-4
(over Lesson 2-3)
Estimate the sum using front-end estimation.
21 40

1. 50
2. 60
3. 61
4. 51

118
5Min 5-1
(over Lesson 2-4)
Find the sum.
37 4

1. 41
2. 40
3. 33
4. 34

119
5Min 5-2
(over Lesson 2-4)
Find the sum.
43 52

1. 90
2. 70
3. 95
4. 100

120
5Min 5-3
(over Lesson 2-4)
Find the sum.
58 23

1. 71
2. 83
3. 81
4. 91

121
5Min 5-4
(over Lesson 2-4)
Find the sum.
64 24

1. 108
2. 88
3. 40
4. 48

122
5Min 5-5
(over Lesson 2-4)
Find the sum.
17 18

1. 45
2. 11
3. 34
4. 35

123
5Min 6-1
(over Lesson 2-5)
Find the sum.
35 4

1. 39
2. 32
3. 75
4. 31

124
5Min 6-2
(over Lesson 2-5)
Find the sum.
18 28

1. 36
2. 46
3. 48
4. 10

125
5Min 6-3
(over Lesson 2-5)
Find the sum.
41 8

1. 31
2. 49
3. 39
4. 59

126
5Min 6-4
(over Lesson 2-5)
Find the sum.
47 26

1. 80
2. 83
3. 73
4. 74

127
5Min 6-5
(over Lesson 2-5)
Find the sum.
0.23 0.08

1. 0.34
2. 0.13
3. 0.31
4. 0.41

128
5Min 7-1
(over Lesson 2-6)
Use one of the problem-solving strategies to
solve. The farmer bought 19 cows in May and 26 in
June. Did he buy more than 40 cows in all?

1. no 10 30 40
2. yes 20 20 40
3. no 30 20 10
4. yes 20 30 50, which is more than 40

129
5Min 8-1
(over Lesson 2-7)
Find the sum. Use estimation to check for
reasonableness.
302 269

1. 571
2. 575
3. 669
4. 569

130
5Min 8-2
(over Lesson 2-7)
Find the sum. Use estimation to check for
reasonableness.
172 584

1. 752
2. 656
3. 652
4. 756

131
5Min 8-3
(over Lesson 2-7)
Find the sum. Use estimation to check for
reasonableness.
7.89 1.09

1. 8.88
2. 6.80
3. 8.98
4. 7.08

132
5Min 8-4
(over Lesson 2-7)
Find the sum. Use estimation to check for
reasonableness.
175 67

1. 252
2. 192
3. 250
4. 242

133
5Min 8-5
(over Lesson 2-7)
Find the sum. Use estimation to check for
reasonableness.
488 174

1. 882
2. 626
3. 592
4. 662

134
End of Custom Shows
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