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Number Systems CLASS 9

Authored by Surbhi Sharma

Mathematics

9th - 10th Grade

Used 142+ times

Number Systems CLASS 9
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30 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which of the following expressions represents a positive number? 

-4.5 - (-5)
-1/8 + (-5/8)
6.1 + (-6.2)
-3/4 - (-2/3)

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Classify the number: 0

natural, whole, integer, rational, real

integer, irrational, real

irrational, real

whole, integer, rational, real

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A non-repeating or non-terminating decimal is classified as ________________.

rational, real

irrational, real

integer, rational, real

whole, integer, irrational, real

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Classify the number:

integer, rational, real

rational, real

irrational, real

whole, integer, rational, real

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is irrational?


49\sqrt{\frac{4}{9}}

123\sqrt{\frac{12}{3}}

7\sqrt{7}

81\sqrt{81}

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 23+32\sqrt{3}+\sqrt{3}  is equal to

 262\sqrt{6}  

6

 333\sqrt{3}  

 464\sqrt{6}  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The number obtained on rationalising the denominator of  172\frac{1}{\sqrt{7}-2}  is

 7+23\frac{\sqrt{7}+2}{3}  

 723\frac{\sqrt{7}-2}{3}  

 7+25\frac{\sqrt{7}+2}{5}  

 7+245\frac{\sqrt{7}+2}{45}  

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