111.
If x = y = 2z and xyz = 256, then x = ?

112.
The value of $$\left( {1 - \frac{1}{{{3^2}}}} \right)$$ $$\left( {1 - \frac{1}{{{4^2}}}} \right)$$ $$\left( {1 - \frac{1}{{{5^2}}}} \right)$$   . . . . . $$\left( {1 - \frac{1}{{{{11}^2}}}} \right)$$ $$\left( {1 - \frac{1}{{{{12}^2}}}} \right)$$   $$ = ?$$

113.
$$\frac{{{{\left( {7.5} \right)}^3} + 1}}{{{{\left( {7.5} \right)}^2} - 6.5}}$$    is equal to = ?

114.
Given that $$\sqrt {13} $$ = 3.6 and $$\sqrt {130} $$  = 11.4, then the value of $$\sqrt {13} $$ + $$\sqrt {1300} $$  + $$\sqrt {0.013} $$   is equal to = ?

115.
Find the sum : $$\frac{1}{2} + $$ $$\frac{1}{6} + $$ $$\frac{1}{{12}} + $$ $$\frac{1}{{20}} + $$ $$\frac{1}{{30}} + $$ $$\frac{1}{{42}} + $$ $$\frac{1}{{56}} + $$ $$\frac{1}{{72}} + $$ $$\frac{1}{{90}} + $$ $$\frac{1}{{110}} + $$ $$\frac{1}{{132}}$$ $$ = ?$$

116.
The sum of the first 35 terms of the series $$\frac{1}{2}$$ $$ + $$ $$\frac{1}{3}$$ $$ - $$ $$\frac{1}{4}$$ $$ - $$ $$\frac{1}{2}$$ $$ - $$ $$\frac{1}{3}$$ $$ + $$ $$\frac{1}{4}$$ $$ + $$ $$\frac{1}{2}$$ $$ + $$ $$\frac{1}{3}$$ $$ - $$ $$\frac{1}{4}$$ . . . . . is = ?

117.
$$\left( {1\frac{1}{2} + 11\frac{1}{2} + 111\frac{1}{2} + 1111\frac{1}{2}} \right)$$      is equal to = ?

118.
The least fraction to be subtracted from the expression $$\frac{{3\frac{1}{4} - \frac{4}{5}{\text{ of }}\frac{5}{6}}}{{4\frac{1}{3} \div \frac{1}{5} - \left( {\frac{3}{{10}} + 21\frac{1}{5}} \right)}}$$     to make it an integer?

119.
The simplified value of $$\sqrt {5 + \sqrt {11 + \sqrt {19 + \sqrt {29 + \sqrt {49} } } } } $$      = ?

120.
The smallest number that must be subtracted from 1000 to make the resulting number a perfect square is = ?

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