1

Express each of the following as a rational number of the form, where p and q are integers and q0:

(i) 2^{-3}

(ii) (-4)^{-2}

(iii)

(iv)

(v)

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2

Find the values of each of the following:

(i)

(ii)

(iii)

(iv)

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3

Find the values of each of the following:

(i)

(ii)

(iii)

(iv)

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4

Simplify:

(i)

(ii)

(iii)

(iv)

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5

Simplify:

(i)

(ii)

(iii)

(iv)

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6

By what number should 5^{-1} be multiplied so that the product many be equal to (-7)^{-1}?

7

By what number should be multiplied so that the product may be equal to ?

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8

By what number should (-15)^{-1} be divided so that the quotient may be equal to (-5)^{-1}?

1

Write each of the following in exponential form:

(i)

(ii)

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2

Evaluate:

(i) 5^{-2}

(ii) (-3)^{-2}

(iii)

(iv)

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3

Express each of the following as a rational number in the form:

(i) 6^{-1}

(ii) (-7)^{-1}

(iii)

(iv)

(v)

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4

Simplify:

(i)

(ii)

(iii)

(iv)

(v)

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5

Express each of the following rational numbers with a negative exponent:

(i)

(ii) 3^{5}

(iii)

(iv)

(v)

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6

Express each of the following rational numbers with a positive exponent:

(i)

(ii)

(iii)

(iv)

(v)

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7

Simplify:

(i)

(ii)

(iii)

(iv)

(v)

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8

By what number should 5^{-1} be multiplied so that the product may be equal to (-7)^{-1} ?

9

By what number should be multiplied so that the product may be equal to ?

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10

By what number should (-15)^{-1} be divided so that the quotient may be equal to (-5)^{-1} ?

11

By what number should be multiplied so that the product may be?

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12

Find x, if

(i)

(ii)

(iii)

(iv)

(v)

(vi)

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13

If x=, find the value of x^{-2}.

13

If x = , find the value of x^{-1}.

14

Find the value of x for which.

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1

Express the following numbers in standard form:

(i) 6020000000000000

(ii) 0.00000000000942

(iii) 0.00000000085

(iv)

(v)

(vi) 0.00072984

(vii) 0.000437

(viii)

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2

Write the following numbers in the usual form:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(viii)

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