Grade 8
Mathematics
Unit: 01 Lesson: 01
Rational Number Application
Select the most appropriate answer choice for each question. Indicate why each answer
choice is or is not the appropriate choice.
1. Gaona Construction is currently building four houses. There is a work crew at each of the
1
1
3
four job sites. The construction company has completed
of one job,
of another job,
2
3
8
3
of the last job. Select the list that shows the fraction of work
of a third job, and
4
completed at the job sites in ascending order.
Justify Reasoning
A.
3 1 1 3
, , ,
8 3 2 4
B.
1 1 3 3
, , ,
2 3 4 8
C.
3 1 3 1
, , ,
4 2 8 3
D.
1 3 1 3
, , ,
3 8 2 4
2. The competition in the 2004 Summer Olympics Men’s Team Final Gymnastics was fierce.
For example, in the horizontal bar event, the U.S.A. scored 28.636, Germany scored 28.7,
Romania scored 27.962, and China scored 28.537 points. Which list shows these scores in
descending order?
Justify Reasoning
A.
28.636, 28.537, 28.7, 27.962
B.
28.7, 28.636, 28.537, 27.962
C.
27.962, 28.7, 28.636, 28.537
D.
27.962, 28.537, 28.636, 28.7
©2012, TESCCC
05/15/12
page 1 of 5
Grade 8
Mathematics
Unit: 01 Lesson: 01
Rational Number Application
Select the most appropriate answer choice for each question. Indicate why each answer
choice is or is not the appropriate choice.
3. Jill is ranking the different tasks at her job based upon amount of time spent on each task.
Select the list that shows the tasks ranked in ascending order. Reading and responding to
7
emails: 18.75% of the work day, sales calls:
of the workday, designing ads for clients:
16
1
0.25 of the day, and business meetings: 12 % of the day.
2
Justify Reasoning
A.
7
1
, 0.25, 18.75%, 12 %
16
2
B.
7
1
, 12 %, 18.75%, 0.25
16
2
C.
1
7
0.25, 18.75%, 12 %,
2
16
D.
1
7
12 %, 18.75%, 0.25,
2
16
4. Ms. Jones had her class keep track of the losses and gains of a particular stock in the stock
market during the first few days of the month. Which list shows the losses and gains ranked
in ascending order?
Justify Reasoning
3
7
7
3 3
,− ,− ,
,
16
8
12 16 8
A.
−1.2, −1
B.
−1
C.
3 3
7
7
3
,
, − , − , −1 , −1.2
8 16
12
8
16
D.
3 3
7
7
3
,
, − , −1.2, − , −1
8 16
12
8
16
©2012, TESCCC
3
7
7
3 3
, − , −1.2, − ,
,
16
8
12 16 8
05/15/12
page 2 of 5
Grade 8
Mathematics
Unit: 01 Lesson: 01
Rational Number Application
Select the most appropriate answer choice for each question. Indicate why each answer
choice is or is not the appropriate choice.
5
on the class number line by placing a green dot on
12
5
the correct location. Mrs. Garcia told Joe that
is between one pair of fractions already
12
5
is found between which pair of fractions on
graphed on the number line. The fraction
12
the number line?
5. Joe is trying to graph the fraction
Justify Reasoning
A.
1
5
and
4
16
B.
8
1
and
16
2
C.
1
1
and
4
2
D.
6
9
and
16
24
6. Identify the group that does NOT contain equivalent fractions, decimals, and percents.
Justify Reasoning
A.
3
3
, 0.1875, 18 %
16
4
B.
11
, 0.91 6 , 91.6%
12
C.
5
2
, 0.41 6 , 41 %
12
3
D.
2
2
, 0.6 6 , 66 %
3
3
©2012, TESCCC
05/15/12
page 3 of 5
Grade 8
Mathematics
Unit: 01 Lesson: 01
Rational Number Application
Select the most appropriate answer choice for each question. Indicate why each answer
choice is or is not the appropriate choice.
7. It is estimated that only 7.5% of today’s junior high students will be employed as adults in a
job requiring little computer skills. Which number is NOT equivalent to 7.5%?
Justify Reasoning
A.
3
40
B.
7.5
100
C.
0.075
D.
7.5
10
8. Which pair of rational numbers is −
7
NOT between?
8
Justify Reasoning
A.
− 100% and − 50%
B.
− 1 and −
C.
−
D.
−
©2012, TESCCC
7
12
7
3
and −
12
4
15
13
and −
16
16
05/15/12
page 4 of 5
Grade 8
Mathematics
Unit: 01 Lesson: 01
Rational Number Application
Select the most appropriate answer choice for each question. Indicate why each answer
choice is or is not the appropriate choice.
9. Create an example for ordering rational numbers including integers, percents, positive and
negative decimals and fractions. Explain the strategy you would use to arrange the
numbers from your example in ascending order.
10. Which number is NOT between −
A.
− 75%
B.
−
2
3
C.
−
3
7
D.
3
and − 80%?
5
− 0.7
11. Four cities in North Texas recorded temperatures below zero during a very strong cold
front. Amarillo recorded a temperature of −14.2 oF. Canyon recorded a temperature of −14
1 o
F. Herford recorded a temperature of −14.09 oF. Canadian recorded a temperature of
2
−15 oF. Which list shows the cities in order of temperatures from least to greatest?
A.
Herford, Amarillo, Canyon, Canadian
B.
Canadian, Herford, Amarillo, Canyon
C.
Canadian, Canyon, Amarillo, Herford
D.
Canadian, Amarillo, Herford, Canyon
©2012, TESCCC
05/15/12
page 5 of 5