Free Printable Grade 8 Maths Rational Numbers Quiz (Part A)

1.

$\left(-\frac{5}{16}\ +\ \frac{7}{12}\right)\ =\ ?$

a)

$-\ \frac{7}{48}$

b)

$\frac{1}{24}$

c)

$\frac{13}{48}$

d)

$\frac{1}{3}$

2.

$\left(\frac{8}{-15}+\frac{4}{-3}\right)=\ ?$

a)

$\frac{28}{15}$

b)

$-\frac{28}{15}$

c)

$\frac{-4}{5}$

d)

$\frac{-4}{15}$

3.

$\left(\frac{7}{-26}+\frac{16}{39}\right)=\ ?$

a)

$\frac{11}{78}$

b)

$\frac{-11}{78}$

c)

$\frac{11}{39}$

d)

$\frac{-11}{39}$

4.

$\left(3+\ \frac{5}{-7}\right)=\ ?$

a)

$\frac{-16}{7}$

b)

$\frac{16}{7}$

c)

$\frac{-26}{7}$

d)

$\frac{-8}{7}$

5.

$\left(\frac{31}{-4}+\frac{-5}{8}\right)=\ ?$

a)

$\frac{67}{8}$

b)

$\frac{57}{8}$

c)

$\frac{-57}{8}$

d)

$\frac{-67}{8}$

6.

$What\ should\ be\ added\ to\ \frac{7}{12\ }to\ get\ \frac{-4}{15?}$

a)

$\frac{17}{20}$

b)

$\frac{-17}{20}$

c)

$\frac{7}{20}$

d)

$\frac{-7}{20}$

7.

$\left(\frac{2}{3}+\frac{-4}{5}+\frac{7}{15}+\frac{-11}{20}\right)=\ ?$

a)

$\frac{-1}{5}$

b)

$\frac{-4}{15}$

c)

$\frac{-13}{60}$

d)

$\frac{-7}{30}$

8.

The sum of two numbers is $\frac{-4}{3}$ . If one of the numbers is -5, what is the other?

a)

$\frac{-11}{3}$

b)

$\frac{11}{3}$

c)

$\frac{-19}{3}$

d)

$\frac{19}{3}$

9.

What should be added to $\frac{-5}{7}$ to get $\frac{-2}{3}$ ?

a)

$\frac{-29}{21}$

b)

$\frac{29}{21}$

c)

$\frac{1}{21}$

d)

$\frac{-1}{21}$

10.

What should be subtracted from $\frac{-5}{3}$ to get $\frac{5}{6}$ ?

a)

$\frac{5}{2}$

b)

$\frac{3}{2}$

c)

$\frac{5}{4}$

d)

$\frac{-5}{2}$

11.

$\left(\frac{-3}{7}\right)^{-1}\$ = ?

a)

$\frac{7}{3}$

b)

$\frac{-7}{3}$

c)

$\frac{3}{7}$

d)

None of these

12.

The product of two rational numbers is $\frac{-28}{81}$ . If one of the numbers is $\frac{14}{27}$ then the other one is

a)

$\frac{-2}{3}$

b)

$\frac{2}{3}$

c)

$\frac{3}{2}$

d)

$\frac{-3}{2}$

13.

The product of two numbers is $\frac{-16}{35}$ . If one of the numbers is $\frac{-15}{14}$ , the other is

a)

$\frac{-2}{5}$

b)

$\frac{8}{15}$

c)

$\frac{32}{75}$

d)

$\frac{-8}{3}$

14.

What should be subtracted from $\frac{-3}{5}$ to get $-2$ ?

a)

$\frac{-7}{5}$

b)

$\frac{-13}{5}$

c)

$\frac{13}{5}$

d)

$\frac{7}{5}$

15.

The sum of two rational numbers is -3. If one of them is $\frac{-10}{3}$ then the other one is

a)

$\frac{-13}{3}$

b)

$\frac{-19}{3}$

c)

$\frac{1}{3}$

d)

$\frac{13}{3}$

16.

Which of the following numbers is in standard form?

a)

$\frac{-12}{26}$

b)

$\frac{-49}{70}$

c)

$\frac{-9}{16}$

d)

$\frac{28}{-105}$

17.

$\left(\frac{-9}{16}\times\frac{8}{15}\right)\ =\ ?$

a)

$\frac{-3}{10}$

b)

$\frac{-4}{15}$

c)

$\frac{-9}{25}$

d)

$\frac{-2}{5}$

18.

$\left(\frac{-5}{9}\div\frac{2}{3}\right)=?$

a)

$\frac{-5}{2}$

b)

$\frac{-5}{6}$

c)

$\frac{-10}{27}$

d)

$\frac{-6}{5}$

19.

$\frac{4}{9}\div?\ =\ \frac{-8}{15}$

a)

$\frac{-32}{45}$

b)

$\frac{-8}{5}$

c)

$\frac{-9}{10}$

d)

$\frac{-5}{6}$

20.

Additive inverse of $\frac{-5}{9}$ is

a)

$\frac{-9}{5}$

b)

$0$

c)

$\frac{5}{9}$

d)

$\frac{9}{5}$

21.

Reciprocal of $\frac{-3}{4}$ is

a)

$\frac{4}{3}$

b)

$\frac{3}{4}$

c)

$\frac{-4}{3}$

d)

$0$

22.

A rational number between $\frac{-2}{3}$ and $\frac{1}{4}$ is

a)

$\frac{5}{12}$

b)

$\frac{-5}{12}$

c)

$\frac{5}{24}$

d)

$\frac{-5}{24}$

23.

The reciprocal of a negative rational number

a)

is a positive rational number

b)

is a negative rational number

c)

can be either a positive or a negative rational number

d)

does not exist

Grade 8 Maths Rational Numbers Quiz (Part A)

Total questions: 23

Worksheet time: 23mins

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