Chapter 1 test 2012- 2013
Transcript of Chapter 1 test 2012- 2013
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Chapter 1 Test 2012-2013
Mathematics 7
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Which of the following points represents a number and its absolute value?
A C and F B B and DC A and ED B and E
7.1e
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Multiple Answers.
Circle all true statements in the table below.
SOL 7.1e
Answer on paper and not your scantron form
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A
B
C
D
7.1e
If the values of the expression below are plotted on a number line, which expression would be closest to five?
|−4|
|−18|
|7|
|16|
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7.1f
Which of the following is equivalent to 2³?
F 2●3
G 3●3
H 2●2●2
J 2●2●2●2
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Fill in the blank.
Choose two values for x that will make the equation below a true sentence.
│x + 9│= 15
-24 -6 -4
0 6 24
7.1e
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7.3
Which list of integers is in order from least to greatest?
A |−4|, -39, 40, 41, -42
B , -4
C −42, −39, −4, |40|, 41
D 41, 40, -4, -39, -42
7.
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Evaluate the expression.-5 + 12 =
F -17G -7 H 7 J 17
7.3b
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Which is closest to the location of point A on the number line?
-5 0 5
A -11B -7C 7D 11
A
7.3
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7.3a
Which model best represents -5 + (-2)?10.
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Evaluate the expression.-5 – 12 + 10
A -17B -7 C 7 D 17
7.3b
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7.3
Which expression is represented by the model below?
F -7 + 0
G -7 + 3
H -7 + 7
J -7 + 10
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Fill in the Blanks.
What number belongs in the box to make the equation true?
-11 = -3 -
SOL 7.3b
Answer on paper and not your scantron form
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7.3 b
The value of yz will be -
F negative because both y and z are negative
G positive because both y and z are negative
H negative because z is farther from 0 than y
J positive because y is closer to 0 than z
14.
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7.3c
What is the value of the expression below?
A 35
B 90
C 50
D 230
𝟓+𝟓 (𝟗÷𝟑 )𝟐15.
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7.3a
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Which model represents -2 + 5?
A
B
C
D
7.3a
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Which expression is represented by the model below?
F 3 x 2
G 3 x -2
H -3 x -2
J -32
7.3a
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Jen evaluated the expression –
5 + 3 • 6 -
At which step did she make a mistake?
Step 1: 5 + 3 • 6 - 6Step 2: 5 + 18 - 6
Step 3: 23 - 6Step 4: 17
A Step 1
B Step 2
C Step 3
D Jen made no mistakes
7.3c
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7.3c
According to the order of operations, which operation should be performed first to simplify the expression?
12 + 2 ● 5
F 12 + 2
G 5 – 1
H 2 ● 5
J 5²
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Using the key above as a guide, what is the result of the operation in the model below?
A -13B -5C 5D 13
7.3a
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7.3b
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7.3c
Which is equivalent to
A -13B -1 C 1D 6
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Which expression represents the model shown below?
F -6 x -3
G -6 x 0
H -6 x 3
J -6 x 6
represents taking out a set
7.3a
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Two points are plotted on the number line below.
Which of the following has the greatest value?
A W - X
B X - W
C W + X
D X • W
7.3b
W X 25.
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7.3b
Evaluate the expression. -7 – (6)
F - 13G - 1H 1J 13
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Pure water boils at 212F. If a certain chemical is added to the water, the boiling point changes by -28F. At what temperature does the new liquid boil?
A 240 FB 184 F C -184 FD -240 F
7.3b
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-4 + 23 - │-4│
F -2
G 0
H 8
J 16
7.3b
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When simplifying the following, using order of operations, which operation should be performed first?
53248 A 8 – 4
B 24
C 2 + 3
D 53
7.3c
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Multiple Answers
Find the expressions which represents the Additive Inverse Property.
8 + (-8) 9 + (-10)
a + (-a) -15 + (-15)
7.16d
30.