CCSS
Express
a fraction
withfractions
denominator
as an equivalent
fraction
NS 3.4G4.NF.5
Know and
understand
that
and10decimals
are two
with denominator 100, and use this technique to add two fractions with respective
1
different
representations
the same
concept
503/10
cents
is denominators
10 and 100.**
For example, of
express
3/10 as
30/100, (e.g.,
and add
+ 4/100
2
= 34/100.
3
of a dollar, 75 cents is of a dollar).
4
**Students who can generate equivalent fractions can develop strategies for adding
fractions with unlike denominators in general. But addition and subtraction with un-like
denominators in general is not a requirement at this grade.
UNDERLYING SKILLS AND CONCEPTS:
fraction of a set;
numbers less than 1
Read and Write Decimals
Decimals are another way to write fractions.
a
K
ey Ide
Decimals can show tenths and hundredths.
Decimals use a decimal point to separate the whole number
part from the fraction part of a decimal number.
This shows 1, or 1 .
1
E x am p l E
This shows 0.1, or 1 .
10
This shows 0.01, or 1 .
100
1
C – © CSL Associates, Inc. All rights reserved.
Tell what the model shows.
Write a fraction and a decimal
for the shaded part.
6
The shaded part shows 1 or 1.6.
10
E x am p l E
2
The model shows a decimal that
is less than one tenth.
When you write a decimal for less
than 10 hundredths, use a zero to
show that it is less than one tenth.
This shows five hundredths, or 0.05, or 5 .
100
page 230
Chapter 20 – Lesson 1
Name
P RAC T I C E
Write the fraction and the decimal that the shaded part shows.
1.
2.
3.
8
;
10
2
;
10
0.8
4.
5.
C – © CSL Associates, Inc. All rights reserved.
25
;
100
0.5
6.
40
;
100
0.25
5
;
10
0.2
0.4
9
;
100
0.09
Shade each grid to show the decimal.
7. 0.1
Math
Reasoning
8. 0.9
9. 0.03
Money
MR 1.1
10. One dime is one tenth of a dollar.
How would you write five dollars and 6 dimes as a decimal?
$5.60
Chapter 20 – Lesson 1
page 231
MCX94.HW.CL.G3.FM&Lesson.v211
8/3/04
13:56
Page 154
Name
…at home!
P RAC T I C E
Write the fraction and the decimal that the shaded part shows.
1.
2.
3.
3
;
10
0.5
4.
5.
75
;
100
0.7
6.
50
;
100
0.75
7
;
10
0.3
0.5
8
;
100
0.08
C – © CSL Associates, Inc. All rights reserved.
5
;
10
Shade each grid to show the decimal.
7. 0.2
Math
Reasoning
8. 0.05
9. 0.35
Money
MR 1.1
10. One dime is one tenth of a dollar.
How would you write three dollars and 8 dimes as a decimal?
$3.80
page 154
Home Resource and Homework
Chapter 20 Lesson 1
MCX94TEG3Ch01_32.v8.9.3 2/21/01 14:48 Page 425
Name
P RAC T I C E
Write the fraction and the decimal that the shaded part shows.
1.
2.
3.
8
;
10
2
;
10
0.8
4.
5.
C – © CSL Associates, Inc. All rights reserved.
25
;
100
0.5
6.
40
;
100
0.25
5
;
10
0.2
0.4
9
;
100
0.09
Shade each grid to show the decimal.
7. 0.1
Math
Reasoning
8. 0.9
9. 0.03
Money
MR 1.1
10. One dime is one tenth of a dollar.
How would you write five dollars and 6 dimes as a decimal?
$5.60
Chapter 20 – Lesson 1
Student Book Page
page 231
Name
…at home!
P RAC T I C E
Write the fraction and the decimal that the shaded part shows.
1.
2.
3.
3
;
10
0.5
4.
5.
75
;
100
0.7
6.
50
;
100
0.75
7
;
10
0.3
0.5
8
;
100
0.08
C – © CSL Associates, Inc. All rights reserved.
5
;
10
Shade each grid to show the decimal.
7. 0.2
Math
Reasoning
8. 0.05
9. 0.35
Money
MR 1.1
10. One dime is one tenth of a dollar.
How would you write three dollars and 8 dimes as a decimal?
$3.80
page 154
Home Resource and Homework
Chapter 20 Lesson 1