$(100^0+2^{-1}+1^{-2})÷2^{-1}(100^0+2^\{-1\}+1^\{-2\})\backslash div2^\{-1\}$ = ……

$3^5÷3^{-6}3^5\backslash div3^\{-6\}$ = ……

$[(\frac{2}{5}{)}^{-1}{]}^{-1}[(\backslash frac\{2\}\{5\})^\{-1\}]^\{-1\}$ = …

$(-2{)}^2(-2)^2$ = ….

a + a + a + … n times = …

Reciprocal of $(\frac{-5}{9}{)}^{99}(\backslash frac\{-5\}\{9\})^\{99\}$ is ……

Which of the following is correct ?

$(xy{)}^{-2}\mathrm{.}(xy{)}^2(xy)^\{-2\}.(xy)^2$ = ……

Cube of $\frac{-1}{2}\backslash frac\{-1\}\{2\}$ = …

$(2^{-2}{)}^{-3}(2^\{-2\})^\{-3\}$ = ……