Math (F1) Decimal
Transcript of Math (F1) Decimal
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WELCOME AND THANK YOU FOR USING THIS MODUL.
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User’s Manual
The Module
About Author
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User’s manual :
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CHAPTER 4: DECIMAL
FORM 1
ENTER
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INTRODUCTION
CONTENT
summary
TUTORIAL
SUMMARY
Main Menu
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introduction
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Pyramid of Egypt
The use of decimals in daily life
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Pyramid of Egypt
The use of decimals in daily life
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By the end of this lesson, you will able to;
• Represent fractions and as decimals and vice-versa.
• Represent fractions with denominators 10,100 and 1000 as decimals.
• Read and write decimals to thousandths.
• Change fractions to decimals and vice-versa.
10
1
100
1
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REPRESENT FRACTIONS WITH
DENOMINATOR 10, 100, 1000 AS
DECIMALS
REPRESENT FRACTION AS
DECIMALS AND VICE VERSA
CHANGING FRACTIONS TO DECIMALS AND
VISE VERSA
CONTENTSRELATIONSHIP BETWEEN DECIMALS AND
FRACTIONS
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REPRESENT FRACTION AS DECIMALS AND VICE
VERSA
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DIAGRAM
THE SHADED PART IS ONE PART OUT OF TEN
PARTS
1.0
10110
1
DESCRIPTION
1.00.110
0 1 0 1 0 0
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DIAGRAM
THE SHADED PART IS ONE PART OUT OF TEN
PARTS
1.0
10110
1
DESCRIPTION
1.00.110
0 1 0 1 0 0
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THE SHADED PART IS 27 PART OUT OF 100 PARTS
27.0
10027100
27
DIAGRAM DESCRIPTION
02 7 02 0 0 7 0 0 7 0 0 0
27.000.27100
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THE SHADED PART IS 27 PART OUT OF 100 PARTS
27.0
10027100
27
DIAGRAM DESCRIPTION
02 7 02 0 0 7 0 0 7 0 0 0
27.000.27100
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HOW TO READ AND WRITE DECIMALS
Decimals Read and write as:
0.47
3.59
38.24
4.073
Zero point four seven
Three point five nine
Thirty-eight point two four
Four point zero seven three
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HOW TO READ AND WRITE DECIMALS
Decimals Read and write as:
0.47
3.59
38.24
4.073
Zero point four seven
Three point five nine
Thirty-eight point two four
Four point zero seven three
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REPRESENT FRACTIONS WITH DENOMINATOR 10, 100, 1000 AS DECIMALS
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Any fraction with denominator 10, 100 and 1 000 can be expressed in decimals.
Decimals 0.1 0.01 0.001
Fractions 10
1
100
1
1000
1
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Any fraction with denominator 10, 100 and 1 000 ca be expressed in decimals.
Decimals 0.1 0.01 0.001
Fractions 10
1
100
1
1000
1
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1111 2222
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Express the following in decimals forms.
10
7
1 zero in the denominator
1 digit to the right of the decimal
Example 1
Solution 7.0
10
7
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Express the following in decimals forms.
10
7
1 zero in the denominator
1 digit to the right of the decimal
Example 1
Solution 7.0
10
7
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100
34
2 digit to the right of the decimal
2 zero in the denominator
Express the following in decimals forms.
Example 2
Solution 34.0
100
34
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100
34
2 digit to the right of the decimal
2 zero in the denominator
Express the following in decimals forms.
Example 2
Solution 34.0
100
34
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CHANGING FRACTIONS TO DECIMALS AND VISE
VERSA
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To change a fraction to a decimals
Rule : Divide the numerator by the denominator
Example 1 : Change the following fraction into decimals
4
3
Solution : 0 3 0 2 8
2 0 2 0 0
75.000.34
75.0
43 4
3
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To change a fraction to a decimals
Rule : Divide the numerator by the denominator
Example 1 : Change the following fraction into decimals
4
3
Solution : 0 3 0 2 8
2 0 2 0 0
75.000.34
75.0
43 4
3
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Example 2 : Change the following fraction into decimals
5
11
Solution :
5 1 0 1 0 0
2.10.655
6
2.156
5
11
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Example 2 : Change the following fraction into decimals
5
11
Solution :
5 1 0 1 0 0
2.10.655
6
2.156
5
11
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To change a decimals to a fraction
Rule : Express the decimals as a fraction by the denominator by using 10, 100 and 1000.
Solution :
Example 1 : Change the following decimals into fraction
04.0
2 zero
2 digit
100
4
25
1
04.0
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To change a decimals to a fraction
Rule : Express the decimals as a fraction by the denominator by using 10, 100 and 1000.
Solution :
Example 1 : Change the following decimals into fraction
04.0
2 zero
2 digit
100
4
25
1
04.0
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Solution :
Example 2 : Change the following decimals into fraction
25.2
2 zero2 digit
4
12
100
252
25.0225.2
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Solution :
Example 2 : Change the following decimals into fraction
25.2
2 zero2 digit
4
12
100
252
25.0225.2
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Solution :
Example 3 : Change the following decimals into fraction
075.0
3 zero
3 digit
1000
75
40
3
075.0
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Solution :
Example 3 : Change the following decimals into fraction
075.0
3 zero
3 digit
1000
75
40
3
075.0
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TUTORIAL
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• Form the group consist of 5 or 6 members.• Each group are given 5 points.• The group that want to answer the
question need to show the number of group first. The faster one can answer the questions.
• The correct answer get 5 points but uncorrect answer will deduct 3 points.
• The winner get the reward.
Instruction
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1 2
3
4
5678
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1 Write the following decimals in words
A. Nine point nine nine nineB. Nine point nine nineC. Nine point ninety nineD. Nine point nine
9. 99
1 2 3 4 5 6 7 8
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1
A. Nine point nine nine nineB. Nine point nine nineC. Nine point ninety nineD. Nine point nine
Write the following decimals in words
9. 99
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TRY AGAIN?
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ANSWER
1 2 3 4 5 6 7 8
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Express the following decimals as numerals
2
A. 0.068
B. 0.638
C. 0.863
D. 0.368
Zero point three six eight
1 2 3 4 5 6 7 8
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2
A. 0.068
B. 0.638
C. 0.863
D. 0.368
Express the following decimals as numerals
Zero point three six eight
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TRY AGAIN?
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ANSWER
1 2 3 4 5 6 7 8
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3
Write the following fraction as a decimals
A. 3.53
B. 3.75
C. 3.25
D. 3.34
4
33
1 2 3 4 5 6 7 8
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3Write the following fraction as a decimals
A. 3.53
B. 3.75
C. 3.25
D. 3.34
4
33
1 2 3 0 2 0 2 0 2 0 0
75.300.154
75.3
4154
15
4
33
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TRY AGAIN?
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ANSWER
1 2 3 4 5 6 7 8
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4 Convert the following decimal into fraction or mixed number to its lowest terms
A. B.
C. D.
2.85
20
172 8
52
20
72
100
852
1 2 3 4 5 6 7 8
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4 Convert the following decimal into fraction or mixed number to its lowest terms
A. B.
C. D.
2.85
20
172
8
52
100
852
20
72
20
172
100
852
85.0285.2
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TRY AGAIN?
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ANSWER
1 2 3 4 5 6 7 8
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0.770 as a fraction is
5
A. B.
C. D.
100
107100
77
1000
771000
70
1 2 3 4 5 6 7 8
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5
0.770 as a fraction is
5
A. B.
C. D.
100
107100
77
1000
771000
70
100
771000
770770.0
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TRY AGAIN?
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ANSWER
1 2 3 4 5 6 7 8
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6
Express as a decimals
A. 9.17
B. 9.017
C. 9.071
D. 0.917
1000
179
1 2 3 4 5 6 7 8
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6
Express as a decimals
A. 9.17
B. 9.017
C. 9.071
D. 0.917
1000
179
017.9
017.091000
179
1000
179
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TRY AGAIN?
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ANSWER
1 2 3 4 5 6 7 8
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7
1.987 can read as
A. One point ninety eight seven
B. One point nine eighty seven
C. One point nine eight seven
D. One point eight seven nine
1 2 3 4 5 6 7 8
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C. One point nine eight seven
7 1.987 can read as
A. One point ninety eight seven
B. One point nine eighty seven
D. One point eight seven nine
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TRY AGAIN?
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ANSWER
1 2 3 4 5 6 7 8
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8
Which of the following fraction is equivalent to 0.625?
A. B.
C. D.
4
18
5
3
16
5
1 2 3 4 5 6 7 8
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8
Which of the following fraction is equivalent to 0.625?
A. B.
C. D.
4
18
5
3
16
5
8
51000
625625.0
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TRY AGAIN?
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ANSWER
1 2 3 4 5 6 7 8
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SUMMARY
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DECIMALS
A DECIMALS REPRESNTS A FRACTION WHOSE DENOMINATOR IS 10, 100, 1000 (multiple of 10)
FRACTION DECIMALS
75.0434
3
4
3100
7575.0
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Nur Fatihah Abdullah
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BIODATA
Nur Fatihah Bt Abdullah
Practicum Teacher (09 – 00)
Mathematic Education
Universiti Pendidikan Sultan Idris
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Developed by :Nur fatihah Abdullah
Special ForSMS Muzaffar Syah
(MOZAC)
Main Menu
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ARE YOU SURE TO EXIT?
YES
NO
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THANK YOUS