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NS 2.4*2$
Count by 2s,
5s, and 10s to 100.
WRDGG
UNDERLYING SKILLS AND CONCEPTS:
rote counting;
ten more;
concept of addition
Skip Count by Tens
a
K
ey Ide
You can use ten-frames to see how to
skip count by ten.
When you skip-count by ten, you add 10 to
each number you say.
E x am p l E
1
How many dots are there? Skip count by ten to find out.
A – © CSL Associates, Inc. All rights reserved.
10
20
30
E x am p l E
40
50
60
70
80
90
100
2
Jan started with 2 dots.
Lee added more.
Skip count by ten to find out how many in all.
2
12
22
Chapter 10 – Lesson 3
32
42
52
62
page 115
Name
P RAC T I C E
Skip count by tens. Record the numbers below.
1
There are 10 stamps in each book.
How many stamps are there in all?
2
2 10 10 10 10 10 10
2, 12, 22, 32, 42, 52, 62
3
7 10 10 10 10 10 10 10 10
4
4 10 10 10 10 10 10 10 10 10
4, 14, 24, 34, 44, 54, 64, 74, 84, 94
Math
Reasoning
5
Number Patterns
MR 2.1
Find a number pattern. Which numbers are missing?
Explain.
100, 90, 80, 70 ,60, 50 ,40, 30 , 20, 10
70, 50, 30. Skip count backwards by tens.
page 116
Chapter 10 – Lesson 3
A – © CSL Associates, Inc. All rights reserved.
7, 17, 27, 37, 47, 57, 67, 77, 87
Name
P RAC T I C E
…at home!
Skip count by tens. Record the numbers below.
1
There are 10 stamps in each book.
How many stamps are there in all?
2
4 10 10 10 10 10 10
4, 14, 24, 34, 44, 54, 64
3
8 10 10 10 10 10 10 10 10
4
5 10 10 10 10 10 10 10 10 10
5, 15, 25, 35, 45, 55, 65, 75, 85, 95
Math
Reasoning
5
Number Patterns
MR 2.1
What is the number pattern? Which numbers are missing?
Explain.
100, 90, 80 , 70, 60 , 50, 40, 30 , 20,10
The numbers that are not 0 have to go
in order backwards. So the numbers between 90
and 70, 70 and 50, 40 and 20 are missing.
page 78
Home Resource and Homework
Chapter 10 Lesson 3
A – © CSL Associates, Inc. All rights reserved.
8, 18, 28, 38, 48, 58, 68, 78, 88
MCX94TEG1Ch01_30.v8.4.1 2/19/01 19:20 Page 213
Name
P RAC T I C E
Skip count by tens. Record the numbers below.
1
There are 10 stamps in each book.
How many stamps are there in all?
10
2
20
30
40
50
60
70
2 10 10 10 10 10 10
2, 12, 22, 32, 42, 52, 62
3
7 10 10 10 10 10 10 10 10
A – © CSL Associates, Inc. All rights reserved.
7, 17, 27, 37, 47, 57, 67, 77, 87
4
4 10 10 10 10 10 10 10 10 10
4, 14, 24, 34, 44, 54, 64, 74, 84, 94
Math
Reasoning
5
Number Patterns
MR 2.1
Find a number pattern. Which numbers are missing?
Explain.
100, 90, 80, 70 ,60, 50 ,40, 30 , 20, 10
70, 50, 30. Skip count backwards by tens.
Chapter 10 – Lesson 3
Student Book Page
page 116
Name
…at home!
P RAC T I C E
Skip count by tens. Record the numbers below.
1
There are 10 stamps in each book.
How many stamps are there in all?
10
2
20
30
40
50
60
4 10 10 10 10 10 10
4, 14, 24, 34, 44, 54, 64
3
8 10 10 10 10 10 10 10 10
4
5 10 10 10 10 10 10 10 10 10
5, 15, 25, 35, 45, 55, 65, 75, 85, 95
Math
Reasoning
5
Number Patterns
MR 2.1
What is the number pattern? Which numbers are missing?
Explain.
100, 90, 80 , 70, 60 , 50, 40, 30 , 20,10
The numbers that are not 0 have to go
in order backwards. So the numbers between 90
and 70, 70 and 50, 40 and 20 are missing.
page 78
Home Resource and Homework
Chapter 10 Lesson 3
A – © CSL Associates, Inc. All rights reserved.
8, 18, 28, 38, 48, 58, 68, 78, 88