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Worksheets

Operations on Rational Numbers

Total questions: 8

Worksheet time: 14mins

Name
Class
Date
1.

Which expression can also be used to calculate the given expression ?  56÷516\frac{5}{6}\div\frac{5}{16}  

a)

56×516\frac{5}{6}\times\frac{5}{16}

b)

65 × 516\frac{6}{5}\ \times\ \frac{5}{16}

c)

56×165\frac{5}{6}\times\frac{16}{5}

d)

65×165\frac{6}{5}\times\frac{16}{5}

2.

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

3.

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} 

4.

What is the difference?

9/14 - 3/7

a)

3/14

b)

- 6/7

c)

- 3/14

d)

6/14

5.

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

6.
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
7.
You give 1/3 of a pan of brownies to Ms. Long and 1/6 of a pan of brownies to Valery.  How much of the pan of brownies did you give away?
a)
2/6
b)
1/6
c)
1/2
d)
1/3
8.

Multiply : 2.31 x 1.46

a)

3.7236

b)

37.326

c)

3.3726

d)

33.726