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

For rational numbers `a/b, c/d` and `e/f` we have `a/b xx (c/d + e/f)` = ______ + ______.

`1/5 xx [2/7 + 3/8] = [1/5 xx 2/7] +` ______.

For every rational numbers x, y and z, x + (y × z) = (x + y) × (x + z).

For all rational numbers a, b and c, a(b + c) = ab + bc.

Verify the property x + y = y + x of rational numbers by taking

`x = 1/2, y = 1/2`

Verify the property x + y = y + x of rational numbers by taking

`x = (-2)/3, y = (-5)/6`

Verify the property x + y = y + x of rational numbers by taking

`x = (-3)/7, y = 20/21`

Verify the property x + y = y + x of rational numbers by taking

`x = (-2)/5, y = (-9)/10`

Simplify the following by using suitable property. Also name the property.

`[1/2 xx 1/4] + [1/2 xx 6]`

Simplify the following by using suitable property. Also name the property.

`[1/5 xx 2/15] - [1/5 xx 2/5]`

Simplify the following by using suitable property. Also name the property.

`(-3)/5 xx {3/7 + ((-5)/6)}`

Verify the property x × (y + z) = x × y + x × z of rational numbers by taking.

`x = (-1)/2, y = 3/4, z = 1/4`

Verify the property x × (y + z) = x × y + x × z of rational numbers by taking.

`x = (-1)/2, y = 2/3, z = 3/4`

Verify the property x × (y + z) = x × y + x × z of rational numbers by taking.

`x = (-2)/3, y = (-4)/6, z = (-7)/9`

Verify the property x × (y + z) = x × y + x × z of rational numbers by taking.

`x = (-1)/5, y = 2/15, z = (-3)/10`

Name the property used in the following.

`-2/3 xx [3/4 + (-1)/2] = [(-2)/3 xx 3/4] + [(-2)/3 xx (-1)/2]`

Four friends had a competition to see how far could they hop on one foot. The table given shows the distance covered by each.

Who walked farther, Nancy or Megha?

A graph showing two sets of data simultaneously is known as ______.

A graph showing two sets of data simultaneously is known as ______.

Which of the following cannot be a perfect square?