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Math 7 – Assignment #3
Name
Chapter 3 – Integers and Rational Numbers
Date
For #1 – 4, use the graph at the right to find the coordinates of each point.
1.
2.
Y
M
.M
A
.A
.
T
X
3.
T
4.
H
5.
Use signs to write the number representing "Lose 6 yards."
6.
Write the opposite of 37.
7.
Evaluate 17  23 .
8.
Name the quadrant that contains the point (–12, 7).
9.
Name the quadrant that contains the point (–14, –5).
10.
Order the following integers from least to greatest: –19, 10, –23, 14, –5.
.H
For #11 – 14, use >, < or = to compare each pair of numbers.
11.
–3
–5
12.
0
–6
13.
13
 13
14.
 25
15.
Use signs to write the number representing "250 feet above sea level."
16.
What is the absolute value of the expression four times negative eight?
17.
Order the following integers from least to greatest: 23, –12, –15, 8, –6.
 26
Evaluate each expression. Use the order of operations and show all work!
18.
–5 + 6 =
19.
–24  (–6) =
20.
11 – 20 =
21.
–12 + (–37) =
22.
–9 – 7 =
23.
(5)(–10) =
24.
–8  (–9) =
25.
7(0)(–6) =
26.
–37 – 47 =
27.
85  (–5) =
28.
(–5)(–8) =
29.
–17 + (–3) =
30.
(–17)(–10) =
31.
9 – (– 3) =
32.
–16 + (–7) =
33.
–63  7 =
34.
18 – (–74) =
35.
7 + (– 7) =
36.
100  (–10)2 =
37.
(21 – 8) – 14 =
38.
(–2)(2)(–2) =
39.
(–5)3 =
40.
(–2)3 + (–8) =
41.
17 – (13 + 20) =
42.
(–5)(4)(–3) =
43.
(4 – 12) – (8 – 12) =
44.
40 – 72 =
45.
(9 – 9)(–51) =
Convert each decimal to a fraction or mixed number in lowest terms.
46.
0.7
47.
–0.35
48.
5.5
Convert each rational number to a decimal by dividing the numerator by the
denominator. Then tell if the decimal is terminating or repeating.
49.
5
8
50.

5
9
1
4
51.
7
54.
24
40
57.
10
60.
40

6
Use multiplication or division to find an equivalent fraction.
52.
40
50
53.
2
7
Rewrite each mixed number as an improper fraction.
55.
8
1

11
56.
2
9 
5
7

10
Rewrite each improper fraction as a mixed number.
58.
35

8
61.
Order the fractions
59.

60

7
7 3 4
1
from least to greatest.
,
, and
10 6 7
8
Express each fraction in lowest terms.
62.
12

36
63.
21

49
64.

16

26
65.
35

55
66.

63

90
67.
32

72
Compare the fractions and decimals and decide which is larger. Show all work.
68.
3
7
or
4
10
69.

70.
0.2 or
2
9
71.
0.658 or 0.67
72.

73.
3
5
7
or 
6
11
2
1
or
3
8
4
8
or 3
5
15
Answer the following parts for each question:
74.

a.
Use a calculator and write the number as a decimal.
b.
State whether the decimal is terminating, repeating or non-repeating.
c.
State whether the number is rational or irrational.
9
10
75.
75
a. __________________________
a. _________________________
b. __________________________
b. _________________________
c. __________________________
c. _________________________