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Secondary School (English Medium) (5 to 8) इयत्ता ८ - CBSE Question Bank Solutions

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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

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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

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

\[\frac{- 9}{10} + \frac{22}{15} + \frac{13}{- 20}\]

 

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

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

\[\frac{5}{3} + \frac{3}{- 2} + \frac{- 7}{3} + 3\]

 

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

Find the volume of a cube, one face of which has an area of 64 m2.

 
[6] Cubes and Cube Roots
Chapter: [6] Cubes and Cube Roots
Concept: undefined >> undefined

Find the volume of a cube whose surface area is 384 m2.

 
[6] Cubes and Cube Roots
Chapter: [6] Cubes and Cube Roots
Concept: undefined >> undefined

Evaluate the following: 

\[\left\{ ( 5^2 + {12}^2 )^{1/2} \right\}^3\]

 

[6] Cubes and Cube Roots
Chapter: [6] Cubes and Cube Roots
Concept: undefined >> undefined

Evaluate the following: 

\[\left\{ ( 6^2 + 8^2 )^{1/2} \right\}^3\]

 

[6] Cubes and Cube Roots
Chapter: [6] Cubes and Cube Roots
Concept: undefined >> undefined

Find the cubes of the following number by column method 35.

[6] Cubes and Cube Roots
Chapter: [6] Cubes and Cube Roots
Concept: undefined >> undefined

Find the cubes of the following number by column method  56 .

[6] Cubes and Cube Roots
Chapter: [6] Cubes and Cube Roots
Concept: undefined >> undefined

Find the cubes of the following number by column method 72 .

[6] Cubes and Cube Roots
Chapter: [6] Cubes and Cube Roots
Concept: undefined >> undefined
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