9.724 ÷ 100 = ?

From a rope 30 m long, a person cuts off as many pieces as possible, each 3 1/4 m long. What fraction of the whole will be left ?

[{(0.1)² - (0.01)²} / {0.0001 + 1 }] is equal to ?

(.538 x .538 - .462 x .462) / (1-.924) = ?

A has twice as much money as B. They play together and at the end of the first game B wins one-third of A's money from A, what fraction of the sum that B now has, must A win black in the second game,

If √5 = 2.24, then the value of 3√5 / 2√5 - 0.48 is ?

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