MATH 0409
REVIEW 1 - PART 2
L F Thomas - Instructor
SHORT ANSWER. Write the word or phrase that best
completes each statement or answers the question.
15) 0.04 - 0.61
Add. Do not use a number line except as a check.
1) -100 + (-98)
16) 78.21 - 28
Simplify.
17) -9 + (-12) + (-11) + (-8) + 4 + (-15)
2) 415 + (-33) + 45 + (-213) + (-60) + 391
3) 2 + -2
18)
4) -5.1 + (-1.2) + 10.1
5) -
Solve the problem.
19) The two charts show the weight gain of some
people and the weight loss of other people. Use
the information given to answer the question
below.
5 2
+
6 3
6) -92 + -
1
5
1
1
+ 7 42 7 14
1
5
+ 38 + 9
9
Evaluate -x for the given value of x.
7) x = 32.3
What is the difference between the weight gain
of Bob and the weight loss of Ed?
Evaluate -(-x) for the given value of x.
23
8) x = 41
Multiply.
20) -9 · (-5) · 9 · (-18)
21) -0.9 · 3.55
Subtract.
9) -14 - (-6)
22) -2 · (-0.2) · 5
10) 9 - 14
11)
12)
23) -
8
3
5
2
24) -
2
3
-
25) -
4
1
1
· · 9
5
4
2
1
7 21
1
2
- 8
3
13) -
1 3
8 5
14
27
Evaluate the expression for the given value of x.
26) (-2x)2 , x = 5
14) -10.6 - 12.9
1
Solve the problem.
27) Rosa averages 19 miles per gallon of gasoline
in her car. How far can she travel on 14 gallons
of gasoline?
28) John earns $9.73/hour. If he works 13 hours,
how much will he earn?
Divide, if possible.
29) -35 ÷ (-5)
30)
60
-2
31)
-85
0
Find the reciprocal, if it exists.
2
32) 7
33)
1
9x
Rewrite the division as a multiplication.
9
34)
1
a
Divide.
35)
1
1
÷ 3
9
36)
4
8
÷ 7
5
Solve the problem.
37) In Smithville, there were 230 teachers in 1990
and 324 teachers in 2000. Find the percent of
increase in the number of teachers in
Smithville during this time period. Round to
the nearest tenth of a percent.
38) Clearwater Community College had 1218
students enrolled in 1998 and 985 students
enrolled in 1999. Find the percent of decrease
in the number of students from 1998 to 1999.
Round to the nearest tenth of a percent.
2
Answer Key
Testname: REVIEW1 PART 2
1)
2)
3)
4)
-198
545
0
3.8
1
5) 6
6) -
36) -
37) 40.9%
38) -19.1%
164
3
7) -32.3
23
8) 41
9) -8
10) -5
5
11)
21
12)
19
24
13) -
29
40
14)
15)
16)
17)
-23.5
-0.57
50.21
-51
2
18)
21
19)
20)
21)
22)
6385 grams
-7290
-3.195
2
20
23) 3
24)
28
81
25) -
5
14
1
45
26)
27)
28)
29)
30)
31)
100
266 miles
$126.49
7
-30
Not defined
7
32) 2
33) 9x
34) 9 · a
35) -3
3