ICSE ICSE Class 8 - CISCE Question Bank Solutions for Mathematics

For each set of rational number, given below, verify the associative property of addition of rational number:

(ii) `(-2)/5, 4/15 and (-7)/10`

For each set of rational number, given below, verify the associative property of addition of rational number:

(iii)  `(-7)/9,2/-3 and (-5)/18`

For each set of rational number, given below, verify the associative property of addition of rational number:

(iv) `-1, 5/6 and (-2)/3` 

State, True Or False

`7/9=(7+5)/(9+5)`

State, True Or False

`7/9=(-7-5)/(9-5)`

State, True Or False

`7/9=(7xx5)/(9xx5)`

State, True Or False

`7/9=(7÷5)/(9÷5)`

State, true or false 

`(-5)/(-12` is a negative rational number

State, true or false 

`(-13)/25` is smaller than `(-25)/13`

Insert one rational number between 7 and 8

Insert one rational number between 3.5 and 5.

Insert one rational number between 2 and 3.2.

Insert one rational number between 4.2 and 3.6.

Insert one rational number between `1/2 and 2`.

Evaluate:

`(3^-1xx9^-1)÷3^-2`

Evaluate:

`(3^-1xx4^-1)÷6^-1`

Evaluate:

`(2^-1+3^-1)^3`

Evaluate:

`(3^-1÷4^-1)^2`

Evaluate:

`(2^2+3^2)xx(1/2)^2`

Evaluate:

`(5^2-3^2)xx(2/3)^-3`