Ch 2 Math - Extra Practice Packet

Ch. 2 Extra Practice Packet
This is an optional packet to help students who wish to become
stronger at percentage skills.
I strongly recommend using websites such as IXL.com or
khanacademy.org to learn and practice. The online version of
our new math book has some help and quizzes available,
although I haven’t explored this yet to see how helpful it is.
Additional worksheets in many math topics (with
answers) can be accessed at Dadsworksheets.com. These
can be downloaded for free. No login info is required.
Hope this helps,
----- This packet is also available on my web page.
NAME __________________________________________
DATE ____________ PERIOD
Ch. 2-1 Extra Practice
Decimals and Fractions
Write each decimal as a fraction or mixed number in simplest form.
4
1.
0.8 5
4.
0.4 5
7.
0.744 125
10.
2
93
2
5.08 525
8
2.
0.32 25
5.
1.875 18
8.
0.486 500
11.
7
243
5
3.625 38
27
3.
0.54 50
6.
0.9 10
9.
0.448 125
9
56
1
12.
12.05 1220
Write each fraction or mixed number as a decimal.
13.
1
8 0.125
14.
7
10 0.7
15.
11
20 0.55
16.
18 1.375
17.
9
20 0.45
18.
15
16 0.9375
19.
8
25 0.32
20.
7
16 0.4375
21.
210 2.3
22.
65 6.6
23.
11
0.44
25
24.
425 4.16
3
3
3
4
NAME __________________________________________
DATE ____________ PERIOD _______
Ch. 2-2 Extra Practice
Percents and Fractions
Write each percent as a fraction in simplest form.
13
1.
13% 100
4.
15% 20
7.
45% 20
10.
12% 25
3
9
3
1
2.
25% 4
5.
60% 5
8.
14% 50
11.
85% 20
3
7
17
2
3.
8% 25
6.
70% 10
9.
40% 5
12.
4% 25
7
2
1
Write each fraction as a percent. Use a model if needed.
13.
77
100 77%
14.
3
4 75%
15.
17
20 85%
16.
3
12%
25
17.
3
30%
10
18.
27
54%
50
19.
2
5 40%
20.
3
50 6%
21.
1
5 20%
22.
19
20 95%
23.
11
25 44%
24.
1
4 25%
NAME __________________________________________
DATE ____________ PERIOD _______
Ch. 2-3 Extra Practice
Percents and Decimals
Write each percent as a decimal.
1.
5% 0.05
2.
22% 0.22
3.
50% 0.5
4.
56% 0.56
5.
75% 0.75
6.
1% 0.01
7.
100% 1
8.
37% 0.37
9.
19% 0.19
10.
9% 0.09
11.
90% 0.9
12.
4% 0.04
Write each decimal as a percent.
13.
0.02 2%
14.
0.2 20%
15.
0.03 3%
16.
0.07 7%
17.
0.66 66%
18.
0.11 11%
19.
0.35 35%
20.
0.31 31%
21.
0.09 9%
22.
0.71 71%
23.
0.24 24%
24.
0.08 8%
NAME __________________________________________
DATE ____________ PERIOD _______
Ch. 2-4 Extra Practice
Percents Greater than 100% and Percents Less than 1%
Write each percent as a decimal and as a mixed number or fraction in
simplest form.
19
1.
895% 8.95; 820
4.
7.
11
2.
555% 5.55; 520
920% 9.2; 95
5.
0.42% 0.0042;
8.
1
4
3.
480% 4.8; 45
122% 1.22; 150
6.
0.3% 0.003;
0.78% 0.0078;
9.
0.99% 0.0099;
11
Write each mixed number as a percent.
1
13
10.
84 825%
11.
720 765%
13.
14 1,400%
14.
165 1,620%
16.
122 1,250%
17.
1
12.
10 1,000%
15.
4410 4,430%
24 275%
18.
62 650%
1
3
3
1
Write each decimal as a percent.
19.
3.5 350%
20.
12 1,200%
21.
6.78 678%
22.
1.95 195%
23.
0.002 0.2%
24.
0.0077 0.77%
25.
0.0056 0.56%
26.
0.0064 0.64%
27.
0.0102 1.02%
NAME __________________________________________
DATE ____________ PERIOD _______
Ch. 2-5 Extra Practice
Compare and Order Fractions, Decimals, and Percents
Fill in each  with <, >, or = to make a true statement.
1.
7
 0.6 >
9
2.
14
 0.75 <
25
3.
0.33  60 <
4.
5
12  0.44 <
5.
18
24  55% >
6.
67%  9 >
7.
11
49  0.29 <
8.
5
14  0.33 >
9.
37%  0.37 =
10.
0.48  25 >
11.
70%  25 <
12.
0.12  11% >
15.
5 7 3 13 5 7 13 3
, , ,
, , ,
9 12 4 18 9 12 18 4
18.
61
100, 0.65, 61.5%
11
21
20
5
Order the numbers from least to greatest.
13.
3 3 1 5 3 1 3 5
, , ,
, , ,
8 4 2 6 8 2 4 6
16.
70%, 0.6, 3 0.6, 3, 70%
2
2
14.
5 3 3 1 5 1 3 3
, , ,
, , ,
12 5 4 2 12 2 5 4
17.
0.8, 20, 17% 17%, 0.8, 20
17
17
61
, 61.5%, 0.65
100
19.
3
3
, 0.44, 42% 42%, 7, 0.44
7
20.
7
7
1
1
0.15, 10.5%, 50 10.5%, 50, 0.15 21. 8, 0.81, 18% 8, 18%, 0.81
NAME __________________________________________
DATE ____________ PERIOD _______
Ch. 2-7 Extra Practice
Percent of a Number
Find the percent of each number.
1.
5% of 40 2
2.
10% of 120 12
3.
12% of 150 18
4.
12.5% of 40 5
5.
75% of 200 150
6.
13% of 25.3 3.289
7.
250% of 44 110
8.
0.5% of 13.7 0.0685
9.
600% of 7 42
10.
1.5% of 25 0.375
11.
81% of 134 108.54
12.
43% of 110 47.3
13.
61% of 524 319.64
14.
100% of 3.5 3.5
15.
20% of 58.5 11.7
16.
45% of 125.5 56.475
17.
23% of 500 115
18.
80% of 8 6.4
19.
90% of 72 64.8
20.
32% of 54 17.28
21.
8% of 20 1.6
NAME __________________________________________
DATE ____________ PERIOD _______
Ch. 2-8 Extra Practice
Solve Percent Problems
Write a percent proportion and solve each problem.
39
5
6
20
1.
39 is 5% of what number?  = 100; 780
3.
6 is 20% of what number?  = 100; 30
5.
45 is 25% of what number?  = 100; 180
7.
62 is 50% of what number?  = 100; 124
9.
15 is 60% of what number?  = 100; 25
11.
66 is 75% of what number?  = 100; 88
13.
15 is 20% of what number?  = 100; 75
15.
6 is 75% of what number?  = 100; 8
45
25
62
50
15
60
66
75
15
20
6
75
38
19
21
30
2.
38 is 19% of what number?  = 100; 200
4.
21 is 30% of what number?  = 100; 70
6.
8 is 25% of what number?  = 100; 32
8.
90 is 36% of what number?  = 100; 250
10.
93 is 50% of what number?  = 100; 186
12.
9 is 15% of what number?  = 100; 60
14.
22 is 25% of what number?  = 100; 88
16.
31 is 20% of what number?  = 100; 155
8
25
90
36
93
50
9
15
22
25
31
20
Ch. 2 Practice Problems
A store is having a sale where school supplies are 30% off their original price. A backpack is on
sale for $11.20. What was the original price of the backpack?
F. $11.50
G. $12
H. $14.20
I. $16
A store is having a sale where movies are 15% off their original price. A movie is on sale for
$22.10. What was the original price of the movie?
F. $22.35
G. $23
H. $26
I. $28
The original price of a jacket is $68. The sale price is 30% off
the original price. What is the amount off the original price?
A. $20.40
B. $30
C. $47.60
D. $226.67
A recipe for guacamole uses 12% lime juice. If a batch contains 0.75 cup of lime juice, how
large is the batch of guacamole?
A. 4.5 cups
B. 6.25 cups C. 7.5 cups D. 9 cups
A recipe for salsa uses 65% tomatoes. If a batch contains 5.2 cups of tomatoes, how large is the
batch of salsa?
A. 5.85 cups
B. 6 cups
C. 7 cups
D. 8 cups
Fred completed 10 math problems. This is 40% of the number of math problems he has to do.
How many math problems must he do?
F. 4
G. 17
H. 25
I. 400
James completed 18 math problems. This is 30% of the problems he has to do. How many
math problems must he do?
F. 48
G. 60
H. 78
I. 540
Trey has answered 15 E-mails. This is 20% of E-mails he must
answer. How many E-mails does he need to answer?
F. 100
G. 75
H. 25
I. 5
A basketball player made 40% of the shots she attempted. If she
made 32 baskets, how many shots did she attempt?
A. 32
B. 40
C. 64
D. 80