End Of Cycle 1 Exam: Decimal Operations & Prime
Factorization
(Adding, Subtracting, Multiplying, Dividing)
Class Set DO NOT WRITE ON!!!
You must show your work for all problems. If there is a problem where no work is to be shown, write the
number to the problem and beside it write “no work”. You will not receive credit for problems that you
don’t show work
1.
Armando earns $7.65 per hour and he
works four days a week. Monday and
Tuesday he works 6.75 hours and 5.75
hours on Thursday and Friday. How
much did he earn for the 3 weeks?
a.
b.
c.
d.
2.
5.
(Hint: A = lw)
a.
b.
c.
d.
$95.63
$191.25
$286.88
$573.75
Olimplia needed a board that was 5.625
feet long. If she cut 5.625 feet from a
board measuring 8 feet long, how many
feet were left over?
Monique is building a rectangular shape
swimming pool in her back yard that is
12.15ft long and 6.9ft wide. What is the
area of her pool she is building?
6.
83.84 ft2
38.10 ft2
19.05 ft2
1.76 ft2
James worked 3.5 hours to build a brick
wall. If the wall is 18.2 feet long, how many
feet did James build each hour?
a. 5.2 ft
a. 2.375 ft
b. 3.250 ft
c. 5.617 ft
d. 5.625 ft
3.
Kerry, Brittany, and Angela have a
painting business. They charge their
customers $8.95 per gallon a paint that
is used. They are painting Stanley’s
house. Kerry used 5.3 gallons of paint,
Brittany used 8.24 gallons paint, and
Angela used 7.17 gallons of paint. How
much can Stanley expect to be charged?
a.
b.
c.
d.
4.
b. 13 ft
c. 23.4 ft
d. 63.7 ft
7.
a.
b.
c.
d.
$2.31
$20.71
$121.18
$185.35
The value of a quarter is $0.25. Jocelyn
1
has 2 dozen quarters. Which
2
expression can be used to find their total
value?
a.
b.
c.
d.
30
24
18
12




$0.25
$0.25
$0.25
$0.25
Keith and Chanteal are working together on
Mrs. Walker’s class project. They predict it
will take a total of 18 hours. Keith worked
on the project for 5.25 hours and Chanteal
worked on the project for 7.5 hours. How
many more hours can they expect it will take
to finish?
8.
30.75 hrs
18 hrs
12.75 hrs
5.25 hrs
Juan is having a birthday party and decided
to invite 7 more people. He needs to
purchase 5.4 more pounds of chicken. If the
chicken cost $5.80 per pound, what is his
the cost of the chicken?
a.
b.
c.
d.
$71.92
$37.80
$31.32
$11.20
-1Welch MS
7th Grade
Class Set DO NOT WRITE ON!!!
9.
A machine uses 2.5 liters of fuel each
hour it runs. Its fuel tank was filled with
12L, but 1.5L has already been used.
How many more hours will the machine
run?
a.
b.
c.
d.
10.
11.
13.
51.1 hours
45.99 hours
32.85 hours
31.5 hours
The table below shows the number miles
traveled during a sightseeing trip.
SIGHTSEEING TRIP
DAY
DISTANCE
Monday
Tuesday
280.3 miles
Wednesday
310.0 miles
Thursday
259.1 miles
If tourist traveled four-days for a total of
1,200 miles sightseeing through Texas,
about how many miles did they have to
travel on Monday?
a.
b.
c.
d.
300
351
400
849
mi
mi
mi
mi
A tow truck gas tank contains 18.6 gallons.
The capacity of the tank is 25.8 gallons.
How much will it cost to fill the tank at
$2.95 per gallon?
a.
b.
c.
d.
4 hours
4.2 hours
4.6 hours
4.8 hours
Tanika earns $7.30 per hour working
part-time at the library. If her weekly
salary is $229.95 how many hours does
she work a week?
a.
b.
c.
d.
12.
A bag of candy contains 5 different types
of candy. If each piece of candy weighs
.09 oz and the bag weighs 8.37 oz how
many pieces of candy are in the package?
a.
b.
c.
d.
14.
$21.24
$54.87
$76.11
$130.98
17 pieces
42 pieces
75 pieces
93pieces
The Eaton Shoe Store received a shipment
of 5.5 dozen pairs of shoes on Thursday.
The table below shows the inventory the
shoe store had on Wednesday.
WEDNESDAY’S INVENTORY
SHOES
AMOUNT
Received
41.75 dozen
Sold
39.5 dozen
How many dozen pairs of shoes will the
shoe store have with the inventory and the
shipment?
a.
b.
c.
d.
2.25 dozen
7.75 dozen
34 dozen
47.25 dozen
-2Welch MS
7th Grade
End Of Cycle 1 Exam: Decimal Operations & Prime
Factorization
(Adding, Subtracting, Multiplying, Dividing)
15.
If a number has exactly 2 factors it is call a
a.
b.
c.
d.
16.
18.
Composite Number
Common Factor
Prime number
Multiple
A wildlife biologist recorded a caribou
traveling at various speeds. Thirty-seven
miles per hour, 40 miles per hour, 51
miles per hour and 25 miles per hour.
Which speed is a prime number?
Pablo worked 3.5 hours to build a brick
wall. He built 2.6 feet of wall each hour.
How long is the wall he built?
a.
b.
c.
d.
19.
Christian and his 3 friends bought a raffle
ticket for $10.00. They won a total of
$249.60. If Christian split the winning
equally how much money will they each
receive?
a. 25 mph
b. 37 mph
c. 40 mph
a. 51 mph
17.
Cassandra, Kianna, Shelby and Pamela
went to Las Vegas. The total cost of the
trip cost was $2074.28, which included
the hotel and plane tickets. If the hotel
was $819.60, how much did each person
have to for their plane ticket?
a.
b.
c.
d.
a.
b.
c.
d.
20.
.9 ft
1.35 ft
6.1 ft
9.1 ft
$24.96
$62.40
$83.20
$249.60
What is the prime factorization of 100?
a.
b.
c.
d.
2
2
4
4




2  5  5
2  25
5  5
25
$1254.68
$518.57
$313.67
$204.90
-3Welch MS
7th Grade
Unit Test 1: Decimal Operations (Adding, Subtracting, Multiplying) &
Prime Factorization
Answer Key w/skill & SEs
TAKS OBJECTIVE 1 – An understanding of numbers, operations, and
quantitative reasoning.
#
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
Answer
D
A
D
A
A
A
D
C
B
D
B
A
D
B
C
B
C
D
B
A
Skill
+,  decimals
- decimals
+,  decimals
 decimals
 decimals
 decimals
- decimals
 decimals
-,  decimals
 decimals
- decimals
+,- decimals
 decimals
- decimals
Prime Fact.
Prime Fact.
-,  decimals
 decimals
 decimals
Prime Fact.
SEs
7.1.B
7.1.B
7.1.B
7.1.A
7.1.B
7.1.B
7.1.B
7.1.B
7.1.B
7.1.B
7.1.B
7.1.B
7.1.B
7.1.B
6.1.D
6.1.D
7.1.B
7.1.B
7.1.B
6.1.D
-4Welch MS
7th Grade