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Secondary School (English Medium) (5 to 8) कक्षा ८ - CBSE Question Bank Solutions for Mathematics

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Mathematics
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The following number are not perfect squares. Give reason. 

 1547

[5] Squares and Square Roots
Chapter: [5] Squares and Square Roots
Concept: undefined >> undefined

The following number is  not perfect square. Give reason. 

45743

[5] Squares and Square Roots
Chapter: [5] Squares and Square Roots
Concept: undefined >> undefined

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The following number is not perfect square. Give reason.

8948

[5] Squares and Square Roots
Chapter: [5] Squares and Square Roots
Concept: undefined >> undefined

The following number is not perfect square. Give reason. 

333333

[5] Squares and Square Roots
Chapter: [5] Squares and Square Roots
Concept: undefined >> undefined

What number should be subtracted from \[\frac{3}{7}\] to get\[\frac{5}{4}?\]

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

What should be added to \[\left( \frac{2}{3} + \frac{3}{5} \right)\] to get\[\frac{- 2}{15}?\]

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Show that the following number is not perfect square: 

 9327 

 

[5] Squares and Square Roots
Chapter: [5] Squares and Square Roots
Concept: undefined >> undefined

What should be added to \[\left( \frac{1}{2} + \frac{1}{3} + \frac{1}{5} \right)\] to get 3?

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Show that the following number is not perfect square:

4058 

[5] Squares and Square Roots
Chapter: [5] Squares and Square Roots
Concept: undefined >> undefined

What should be subtracted from \[\left( \frac{3}{4} - \frac{2}{3} \right)\] to get\[\frac{- 1}{6}?\]

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Show that the following number is not perfect square: 

22453 

[5] Squares and Square Roots
Chapter: [5] Squares and Square Roots
Concept: undefined >> undefined

Show that the following number is not perfect square: 

 743522 

[5] Squares and Square Roots
Chapter: [5] Squares and Square Roots
Concept: undefined >> undefined

Fill in the branks:

\[\frac{- 4}{13} - \frac{- 3}{26} = . . .\]
[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Fill in the branks:

\[\frac{- 9}{14} + . . . = - 1\]
[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Fill in the branks:

\[\frac{- 7}{9} + . . . = 3\]
[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined
Fill in the branks:
\[. . . + \frac{15}{23} = 4\]
[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Simplify each of the following and write as a rational number of the form \[\frac{p}{q}:\]

\[\frac{3}{4} + \frac{5}{6} + \frac{- 7}{8}\]
[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Simplify each of the following and write as a rational number of the form \[\frac{p}{q}:\]

\[\frac{2}{3} + \frac{- 5}{6} + \frac{- 7}{9}\]
[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Simplify each of the following and write as a rational number of the form \[\frac{p}{q}:\]\[\frac{- 11}{2} + \frac{7}{6} + \frac{- 5}{8}\]

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Simplify each of the following and write as a rational number of the form \[\frac{p}{q}:\]

\[\frac{- 4}{5} + \frac{- 7}{10} + \frac{- 8}{15}\]

 

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined
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