Transcript Percent I.ppt

Percent I
by Monica Yuskaitis
Definition

Percent can be defined as “of
one hundred.”
of
100
Copyright © 2000 by Monica Yuskaitis
Definition

“Cent” comes from the Latin
and means 100.
Many words have
come from the root
cent such as
century, centimeter,
centipede, & cent.
Copyright © 2000 by Monica Yuskaitis
Definition

The letter C in Roman Numerals
stands for 100 or “cent”.
CCC means three
hundred.
Copyright © 2000 by Monica Yuskaitis
Percent and Money
 We write our change from a
dollar in hundredths.
If you understand
money, learning
percents is a
breeze.
Copyright © 2000 by Monica Yuskaitis
Comparing Money & Percents
 $ .50 is ½ of a dollar
 50% also means ½
50¢
$1.00
=
50¢
Copyright © 2000 by Monica Yuskaitis
Comparing Money & Percents


50% means ½
50% of 6 stars is 3 stars
50% of
Copyright © 2000 by Monica Yuskaitis
=
Comparing Money & Percents
Percent
Fraction
Decimal Fraction Simplified
1
50
50% = .50 = 100 = 2
Copyright © 2000 by Monica Yuskaitis
50 % Means
50 parts out of 100 or 50 hundredths.
1
11
21
31
41
51
61
71
81
91
2
12
22
32
42
52
62
72
82
92
3
13
23
33
43
53
63
73
83
93
4
14
24
34
44
54
64
74
84
94
5
15
25
35
45
55
65
75
85
95
6
16
26
36
46
56
66
76
86
96
7
17
27
37
47
57
67
77
87
97
8
18
28
38
48
58
68
78
88
98
Copyright © 2000 by Monica Yuskaitis
9
19
29
39
49
59
69
79
89
99
10
20
30
40
50
60
70
80
90
100
Comparing Money & Percents
 $ .25 is ¼ of a dollar
 25% also means ¼
$1.00
25¢
25¢
25¢
25¢
=
Copyright © 2000 by Monica Yuskaitis
Comparing Money & Percents


25% means ¼
25% of 8 lemons is 2 lemons
25% of
Copyright © 2000 by Monica Yuskaitis
=
Comparing Money & Percents
Percent
Fraction
Decimal Fraction Simplified
1
25
25% = .25 = 100 = 4
Copyright © 2000 by Monica Yuskaitis
25 % Means
25 parts out of 100 or 25 hundredths.
1
11
21
31
41
51
61
71
81
91
2
12
22
32
42
52
62
72
82
92
3
13
23
33
43
53
63
73
83
93
4
14
24
34
44
54
64
74
84
94
5
15
25
35
45
55
65
75
85
95
6
16
26
36
46
56
66
76
86
96
7
17
27
37
47
57
67
77
87
97
Copyright © 2000 by Monica Yuskaitis
8
18
28
38
48
58
68
78
88
98
9
19
29
39
49
59
69
79
89
99
10
20
30
40
50
60
70
80
90
100
Comparing Money & Percents
 $ .10 is 1/10 of a dollar
 10% also means 1/10
10¢
10¢
10¢
10¢
10¢
10¢
10¢
10¢
10¢
10¢
$1.00
=
Copyright © 2000 by Monica Yuskaitis
Comparing Money & Percents


10% means 1/10
10% of 10 ice creams is 1 ice cream
=
10% of
Copyright © 2000 by Monica Yuskaitis
Comparing Money & Percents
Percent
Fraction
Decimal Fraction Simplified
1
10
10% = .10 = 100 = 10
Copyright © 2000 by Monica Yuskaitis
10 % Means
10 parts out of 100 or 10 hundredths.
1
11
21
31
41
51
61
71
81
91
2
12
22
32
42
52
62
72
82
92
3
13
23
33
43
53
63
73
83
93
4
14
24
34
44
54
64
74
84
94
5
15
25
35
45
55
65
75
85
95
6
16
26
36
46
56
66
76
86
96
7
17
27
37
47
57
67
77
87
97
8
18
28
38
48
58
68
78
88
98
Copyright © 2000 by Monica Yuskaitis
9
19
29
39
49
59
69
79
89
99
10
20
30
40
50
60
70
80
90
100
Credits
Illustrations from:
 Corel Gallery by Corel Corp.
 Broderbund ClipArt T/Maker Co.
 Clipart
from “Microsoft Clip
Gallery” located on the Internet
at http://cgl.microsoft.com/
clipgallerylive/default.asp
Copyright © 2000 by Monica Yuskaitis