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Math Operations with Rational Numbers

Total questions: 45

Worksheet time: 2hrs 15mins

Name
Class
Date
1.

Which expression can also be used to calculate the expression above?

a)
b)
c)
d)
2.

Ella played a math game and had five cards shown. Her score was the sum of the numbers on these five cards. What was Ella's score?

a)

3

b)

23

c)

-5

d)

10

3.

A baby weighed 7.25 lb at birth. At the end of 8 months

the baby weighed 2.5 times its birth weight. How many pounds did the baby weigh at the end of 8 months?

a)

14.5 lb

b)

9.75 lb

c)

18.125 lb

d)

14.125 lbs

4.

A recipe for cookies requires 2/3 cup of butter. Rama wants to make 3/4 of the recipe. How many cups of butter should Rama use to make the cookies?

a)
b)
c)
d)
5.

A grocery store sells steak for$6.10 per pound. What would be the cost of 2.6 lb of steak?

a)

$14.03

b)

$8.70

c)

$15.86

d)

$12.06

6.

Mario paid a total of $12.24 for 4 packs of soda. How much did he pay for each pack?

a)

$36.72

b)

$3.06

c)

$12.28

d)

$3.60

7.

Jack was the running back on his football team. The first play he gained 6 yards, second play loss 20 yards, third play gained 25 yards, and fourth play loss 13 yards. What was his total gains or losses?

a)

-10

b)

-2

c)

64

d)

11

8.
When multiplying or dividing a NEGATIVE and NEGATIVE number your answer will be...
a)
Positive
b)
Negative
c)
Depends on the largest number
d)
None of the above
9.
When multiplying or dividing a NEGATIVE and POSITIVE number your result will be...
a)
Positive
b)
Negative
c)
Depends on which is bigger.
d)
None of the above
10.

Sharon wants to make cookies for her class bake sale. She found a recipe that calls for 2/3 cups of flour for each batch of cookies. How many batches can she make using 12 cups of flour?

a)

12

b)

18

c)

6

d)

4

11.
On Tuesday in Washington D.C. the temperature at 8am was  -8 degrees.  At 1pm, it was 27 degrees.  By how many degrees did the temperature change from morning to evening?
a)
21
b)
-35
c)
35
d)
19
12.

What is the sum?
 45+15\frac{4}{5}+\frac{1}{5}  

a)

 510\frac{5}{10} 

b)

 12\frac{1}{2} 

c)

1

d)

 45\frac{4}{5} 

13.

What is the product?

4/5 × -1/5

a)

- 5/10

b)

4/10

c)

- 4/25

d)

5/25

14.
What is the quotient?
3/4 ÷ 3/8
a)
1/2
b)
1/4
c)
0
d)
2
15.

What is the difference?

9/14 - 3/7

a)

3/14

b)

- 6/7

c)

- 3/14

d)

6/14

16.

Julie walks 10 dogs a week and gets paid $4.25 for each dog. How much money does she make in one week?

a)

$42.50

b)

$442.50

c)

$425.00

d)

$3.50

17.
Mr. Smith has an account balance of -$275.78.  He deposits $539.20 into his account.  What is Mr. Smith's account balance now?
a)
$813.98
b)
$263.42
c)
$539.78
d)
$345.98
18.

A student has $78 in his checking account. If the student spends $12 on lunch, which number could be combined with the amount left in the account to make zero?

a)

–90

b)

–78

c)

–66

d)

–12

19.

(2/3) + 0.6


When adding two rational numbers, if the two have the same signs, then the solution will have the ___________ sign of both numbers

a)

Same Sign

b)

Opposite Sign

20.

-1 - 6

a)

7

b)

-7

c)

5

d)

-5

21.

9 + (-5)

a)

14

b)

4

c)

-4

d)

5

22.

-2 + 4

a)

6

b)

4

c)

2

d)

-2

23.

(1/2) + (1/2)

a)

0

b)

1/2

c)

1

d)

2

24.

(-3/4) - (1/4)

a)

1

b)

0

c)

-1

d)

2

25.

0.5 - 0.25

a)

0.525

b)

0.75

c)

0.25

26.

2 - 0.75

a)

2.75

b)

2.25

c)

1.25

d)

0.25

27.

Angelo has $5.50 for lunch. He guys a cookie for $1.05 and a drink for 1.45. How much money does Angelo have left?

a)

$2.50

b)

$3.00

c)

$1.25

d)

$4.00

28.

Devon had his two friends over for pizza. Devon ate 1/4 of the pizza. One of his friends ate 3/8 of the pizza and the other friend ate 1/8 of the pizza. How much of the pizza is left?

a)

1/4

b)

1/8

c)

1/3

d)

1/5

29.

Joe went scuba diving. He descended down to 5 feet below sea level, stopped, then went down another 20 feet. What is Joe's level?

a)

25 feet

b)

-15 feet

c)

15 feet

d)

-25 feet

30.

-4.5 is an example of what kind of number?

a)

whole number

b)

integer

c)

rational number

d)

irrational number

31.
Tina’s hand measures 1/3 foot long. Tim’s hand measures 1/4 foot long. How much longer is Tina’s hand than Tim’s hand?
a)
1/4 foot
b)
7/12 foot
c)
1/12 foot
d)
1/7 foot
32.

-9 X 2.2

a)

-19.8

b)

-1.98

c)

19.8

d)

1.98

33.
What is the product?
4/5 × 1/5
a)
5/10
b)
4/10
c)
4/25
d)
5/25
34.
An example of an integer is...
a)
9.1
b)
8/9
c)
-9
d)
-2.3
35.
-5.7 + 0.9
a)
2.1
b)
-4.8
c)
-8.3
d)
-10.7
36.
-7.79 + 5.4
a)
4.61
b)
-2.19
c)
-2.39
d)
2.11
37.
a)
-6/12
b)
-5/12
c)
5/12
d)
-5/7
38.
Divide.
a)
-1/10
b)
-5/8
c)
-2/20
d)
5/8
39.
-6.3(-0.6)
a)
-3.78
b)
5.76
c)
3.78
d)
-5.12
40.
Convert to a decimal
           1/8
a)
.25
b)
.125
c)
.55....
d)
.18888...
41.
Convert 4/5 to a decimal
a)
.45
b)
.80
c)
.40
d)
.54
42.
1/8 as a decimal: 
a)
.13
b)
.785
c)
.125
d)
.18
43.
How would the decimal .08 be written as a fraction?
a)
8/10
b)
8/100
c)
1/8
d)
8/8
44.
How would the decimal .06 be written as a fraction?
a)
6/10
b)
1/6
c)
6/100
d)
6/600
45.
How much is shaded 
a)
= .9
b)
= 9.10
c)
= .1 
d)
= .5

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