(5.5)³-(4.5)³ is equal to : 

$$3\sqrt{ {72.9\over0.4096}}$$ is equal to : 

1008 divided by which single-digit number gives a perfect square?

What is the square root of 0.09 ?

The value of   $$ {(0.03)^2 - (0.01)^2}\over 0.03-0.01 $$

Direction : What value should come in the place of question mark (?) in the following questions?

80% of 10% of 340 = ?

Direction : What value should come in the place of question mark (?) in the following questions?

125% of 2440 – 75% of 1856 = ?

The value of $${\sqrt{40+\sqrt{9\sqrt{81}}} }$$ is