Free Printable REAL NUMBERS GRADE 10

1.

The exponent of 2 in the prime factorisation of 144 is

a)

4

b)

5

c)

6

d)

3

2.

If the LCM of a and 18 is 36 and the HCF of a and 18 is 2,then a is

a)

2

b)

3

c)

4

d)

1

3.

Which of the following rational numbers have terminating decimal?

a)

$\frac{16}{125}$

b)

$\frac{22}{17}$

c)

$\frac{1050}{29}$

d)

$\frac{2}{21}$

4.

The decimal expansion of the rational number
$\frac{14587}{1250}$ will terminate after

a)

one decimal place

b)

two decimal places

c)

three decimal places

d)

four decimal places

5.

If p and q are coprime then p² and q² are

a)

odd

b)

even

c)

not coprime

d)

coprime

6.

$4.\overline{325}$ is

a)

an irrational number

b)

a natural number

c)

a rational number

d)

an integer

7.

The smallest number by which
$\frac{1}{7}$ should be multiplied so that its decimal expansion terminates after one place of decimal, is

a)

$\frac{1}{7}$

b)

$\frac{1}{10}$

c)

$\frac{7}{10}$

d)

$\frac{7}{100}$

8.

The prime factorisation of denominator of
$10.\overline{7}$

a)

has factors in the form $2^n\times^{ }5^m$

b)

has factors other than 2 or 5

REAL NUMBERS GRADE 10

Total questions: 8

Worksheet time: 4mins

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