NEGATIVE NUMBERS & THE NUMBER LINE
NEGATIVE NUMBERS/NUMBER LINE REVIEW
Now we're going to try something completely different.
Below is a list of problems.
Under each of the problems is a list of options for you to select from.
Choose what you think is the correct answer, and you'll be told whether or not your selection was correct.
Next to each problem is a link taking you to the section that problem uses. Click on the link if you want to go back for a review.
Unlike the exercises, prior to now, you'll only have one chance to choose the correct answer

Ready? here goes

Problem 1
|___|___|___|___o___|___|___o___|___|___|
¬ -5  -4  -3  -2  -1   0   1   2   3   4   5 ®
is represented by which of the following inequalities
[Graphing inequalities]

Choices
-1 £ n £ 2
-1 £ n < 2
-1 < n £ 2
-1 < n < 2
"None of the above"

Problem 2
Which of the following numbers would be included on the above graph?
[Inequalities]

Choices
-1
0.5
2
-1 1/4
None of the above

Problem 3
Which of the following ranges would describe the above graph?
[sets]

Choices
(1,2)
[1,2)
(1,2]
[1,2]
None of the above

Problem 4
Which of the following numbers would not be included in [0,3)
[sets]

Choices
0
1/15
Ö2
3
None of the above

Problem 5
Which inequality is equivalent to the range defined in problem 4?
[inequalities and sets]

Choices
3 ³ n > 0
3 > n ³ 0
3 > n > 0
3 ³ n ³ 0
"None of the above"

Problem 6
Which number line is a graph of the above inequality?
[graphs]

Choices
|___|___|___|___|___o___|___|___o___|___|
 
¬ -5  -4  -3  -2  -1   0   1   2   3   4   5 ® 
|___|___|___|___|___·___|___|___o___|___|
 
¬ -5  -4  -3  -2  -1   0   1   2   3   4   5 ® 
|___|___|___|___|___o___|___|___·___|___|
 
¬ -5  -4  -3  -2  -1   0   1   2   3   4   5 ® 
|___|___|___|___|___·___|___|___·___|___|
 
¬ -5  -4  -3  -2  -1   0   1   2   3   4   5 ®
None of the above

Problem 7
Which of the following statements is true?
[compare and double minus]

Choices
-5 > 1
-14 < -15
3 < -1
2 > -(-2)
None of the above

Problem 8
4/25 - 3/5
[addition]

Choices
-11/25
11/25
12/25
-12/25
None of the above

Problem 9
16/21 * -1 1/6
[Multiplication]

Choices
8/9
-8/9
1 8/9
-1 8/9
None of the above

Problem 10
21.23 -(-1.3278)
[Double negative]

Choices
19.9022
-19.9022
-22.5578
22.5578
None of the above

Problem 11
-16 divided by -1 1/3
[Division]

Choices
12
-12
21 1/3
-21 1/3
None of the above

Problem 12
When reviewing the household budget you notice that in the last month you deposited $735.44 into your checking account and your wife deposited $700.24
(designate as positive numbers)
You wrote out the following checks
$525.21 for the utilities ;
$321.34 for credit cards ;
$575.76 for the mortgage.
(Designate these checks as negative numbers)
Are you overdrawn or do you still have money left in the account?
[addition]

Choices
You still have $13.37
You are overdrawn by $13.37
You still have $113.37
You are overdrawn by $113.37
None of the above

Problem 13
At the end of last year the government had a deficit of $12,134,525. This year it spent $1,234,456 and took in $1,500,325. What is the fiscal picture now?
[addition]

Choices
A surplus of $11,868,556
A deficit of $11,868,556
A surplus of $11,868,656
A deficit of $11,868,656
None of the above

Problem 14
(-11.75-(-13)) ¸ 0.75
[Double negative and Division]

Choices
1.666...
33
-1.666...
-33
None of the above

Problem 15
(-484 * 4) ¸ (-11)2
[Multiplication & Division]

Choices
16
-176
176
-16
None of the above

Problem 16
Which of the following statements is true?
[Absolute value]

Choices
|-5| = -5
|33| = -33
|-3| = 3
All of the above
None of the above




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