Percent II
by Monica Yuskaitis
Definition

Percent can be defined as “of
one hundred.”
of
100
Copyright © 2000 by Monica Yuskaitis
20 % Means
20 parts out of 100 or 20 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
Percents Have Equivalents in
Decimals and Fractions
Percent
Fraction
Decimal Fraction Simplified
1
20
20% = .20 = 100 = 5
Copyright © 2000 by Monica Yuskaitis
How to Find the Percent of
a Whole Number

The first thing to remember is “of”
means multiply in mathematics.
of = x
Copyright © 2000 by Monica Yuskaitis
How to Find the Percent of
a Whole Number

Step 1 - When you see a percent
problem you know when you read
“of” in the problem you multiply.
25% of
x 200
Copyright © 2000 by Monica Yuskaitis
How to Find the Percent of a
Whole Number
 Step 2 – Change your percent to a
decimal and then move it two places
to the left.
. 25%
. x 200
Copyright © 2000 by Monica Yuskaitis
How to Find the Percent of a
Whole Number
 Step 3 – Multiply just like a regular
decimal multiplication problem.
200
x .25
1000
+400
5000
Copyright © 2000 by Monica Yuskaitis
How to Find the Percent of a
Whole Number
 Step 4 – Place the decimal point 2
places to the left in your answer.
200
x .25
1000
+400
5000
.
Copyright © 2000 by Monica Yuskaitis
What is the percent of this number?
.20 .% of
x 820
820
x .20
000
+1640
16400
.
Copyright © 2000 by Monica Yuskaitis
What is the percent of this number?
x2 725
.40 .% 1of
725
x .40
000
+2900
29000
.
Copyright © 2000 by Monica Yuskaitis
What is the percent of this number?
x1 692
.60 .% 5of
692
x .60
000
+4152
21520
.
Copyright © 2000 by Monica Yuskaitis
Credits
Clipart from “Microsoft Clip
Gallery” located on the Internet
at http://cgl.microsoft.com/
clipgallerylive/default.asp
Copyright © 2000 by Monica Yuskaitis