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NS 1.2
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UNDERLYING SKILLS AND CONCEPTS:
Use words, models, and expanded forms (e.g., 45 ! 4 tens " 5) to
represent numbers (to 1,000).
read numbers
Identify Place Value
We use digits to write numbers.
a
K
ey Ide
There are ten digits.
They are: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9.
The place of each digit in a number has
a value.
nd
red
s
Te
ns
On
es
E x am p l E
You say, “five hundred seventy-six.”
Hu
You see the number 576.
5
B – © CSL Associates, Inc. All rights reserved.
The digit 5 is in the hundreds place.
Its value is 500.
7
6
Read: “five hundred, seventy-six.”
The digit 7 is in the tens place.
Its value is 70.
The digit 6 is in the ones place. Its value is 6.
The number 576 means:
5 hundreds " 7 tens " 6 ones
500
" 70
Chapter 3 – Lesson 1
"6
page 27
Name
P RAC T I C E
What is the value of the digit 3?
1
317
3 hundreds
_________________
2
703
3 ones
_________________
3
193
3 ones
_________________
4
130
3 tens
_________________
5
437
3 tens
_________________
6
239
3 tens
_________________
What is the value of the digit 1?
7
175
1 hundred
_________________
8
801
1 one
_________________
9
410
1 ten
_________________
10
160
1 hundred
_________________
11
413
400 10 3
_________________
12
789
700 80 9
_________________
13
754
700 50 4
_________________
14
326
300 20 6
_________________
15
140
100 40 0
_________________
16
652
600 50 2
_________________
17
208
200 0 8
_________________
18
81
80 1
_________________
19
921
900 20 1
_________________
20
605
600 0 5
_________________
Math
Reasoning
21
Number Sense
I have a 3 in the tens place.
I have a 7 in the hundreds place.
I have a 9 in the ones place.
What number am I?
page 28
MR 1.1
739
Chapter 3 – Lesson 1
B – © CSL Associates, Inc. All rights reserved.
Show the value of each digit.
Name
P RAC T I C E
What is the value of the digit 3?
1
843
3 ones
_________________
2
923
3 ones
_________________
3
367
3 hundreds
_________________
4
753
3 ones
_________________
5
631
3 tens
_________________
6
325
3 hundreds
_________________
What is the value of the digit 6?
7
164
6 tens
_________________
8
651
6 hundreds
_________________
9
618
6 hundreds
_________________
10
126
6 ones
_________________
11
513
500 10 3
_________________
12
563
500 60 3
_________________
13
435
400 30 5
_________________
14
321
300 20 1
_________________
15
946
900 40 6
_________________
16
756
700 50 6
_________________
17
757
700 50 7
_________________
18
52
50 2
_________________
19
821
800 20 1
_________________
20
254
200 50 4
_________________
Math
Reasoning
21
Number Sense
I have a 7 in the tens place.
I have a 9 in the hundreds place.
I have a 3 in the ones place.
What number am I?
page 18
MR 1.1
973
Home Resource and Homework
Chapter 3 Lesson 1
B – © CSL Associates, Inc. All rights reserved.
Show the value of each digit.
MCX94TEG2Ch01_30.v9.4.1 2/19/01 19:44 Page 51
Name
P RAC T I C E
What is the value of the digit 3?
1
317
3 hundreds
_________________
2
703
3 ones
_________________
3
193
3 ones
_________________
4
130
3 tens
_________________
5
437
3 tens
_________________
6
239
3 tens
_________________
What is the value of the digit 1?
7
175
1 hundred
_________________
8
801
1 one
_________________
9
410
1 ten
_________________
10
160
1 hundred
_________________
B – © CSL Associates, Inc. All rights reserved.
Show the value of each digit.
11
413
400 10 3
_________________
12
789
700 80 9
_________________
13
754
700 50 4
_________________
14
326
300 20 6
_________________
15
140
100 40 0
_________________
16
652
600 50 2
_________________
17
208
200 0 8
_________________
18
81
80 1
_________________
19
921
900 20 1
_________________
20
605
600 0 5
_________________
Math
Reasoning
21
Number Sense
I have a 3 in the tens place.
I have a 7 in the hundreds place.
I have a 9 in the ones place.
What number am I?
Chapter 3 – Lesson 1
Student Book Page
MR 1.1
739
page 28
Name
P RAC T I C E
What is the value of the digit 3?
1
843
3 ones
_________________
2
923
3 ones
_________________
3
367
3 hundreds
_________________
4
753
3 ones
_________________
5
631
3 tens
_________________
6
325
3 hundreds
_________________
What is the value of the digit 6?
7
164
6 tens
_________________
8
651
6 hundreds
_________________
9
618
6 hundreds
_________________
10
126
6 ones
_________________
11
513
500 10 3
_________________
12
563
500 60 3
_________________
13
435
400 30 5
_________________
14
321
300 20 1
_________________
15
946
900 40 6
_________________
16
756
700 50 6
_________________
17
757
700 50 7
_________________
18
52
50 2
_________________
19
821
800 20 1
_________________
20
254
200 50 4
_________________
Math
Reasoning
21
Number Sense
I have a 7 in the tens place.
I have a 9 in the hundreds place.
I have a 3 in the ones place.
What number am I?
page 18
MR 1.1
973
Home Resource and Homework
Chapter 3 Lesson 1
B – © CSL Associates, Inc. All rights reserved.
Show the value of each digit.