ICSE ICSE Class 8 - CISCE Question Bank Solutions

Fill in the blank:

If two rational numbers have opposite signs then their product is always …………..

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The reciprocal of a positive rational number is ………. and the reciprocal of a negative raitonal number is ……………

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Rational number 0 has ………….. reciprocal.

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The product of a rational number and its reciprocal is ………..

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The numbers ……….. and ……….. are their own reciprocals.

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If m is reciprocal of n, then the reciprocal of n is ………….

Compute:

`1^8xx3^0xx5^3xx2^2`

Compute:

`(4^7)^2xx(4^-3)^4`

Compute:

`(2^-9÷2^-11)^3`

Compute:

`(2/3)^(-4)xx(27/8)^-2`

Compute:

`(56/28)^0÷(2/5)^3xx16/25`

Compute:

`(12)^-2xx3^3`

Compute:

`(-5)^4xx(-5)^6÷(-5)^9`

Compute:

`(-1/3)^4÷(-1/3)^8xx(-1/3)^5`

Compute:

`9^0xx4^-1÷2^-4`

Compute:

`(625)^(-3/4)`

Compute:

`(27/64)^(-2/3)`

Compute:

`(125)^(-2/3)÷(8)^(2/3)`

Compute:

`(243)^(2/5)÷(32)^(-2/5)`

Compute:

`(-3)^4-(root(4)(3))^0xx(-2)^5÷(64)^(2/3)`