Direction: What approximate value will come in place of the question mark (?) in the following question? (You are not expected to calculate the exact value)

(1110.02 + 89.81) ÷ ? – $${\sqrt{15}}$$= 15.98

Direction: What approximate value will come in place of the question mark (?) in the following question? (You are not expected to calculate the exact value)

? ÷ 2.997 + 799.98 × 8.9 = 9199.978

Direction: What approximate value will come in place of the question mark (?) in the following question? (You are not expected to calculate the exact value)

6400.002 × 49.99 %   ÷ 999.99 =?

$$ {\sqrt{5929}}+\sqrt{8464}=(?)^{2}$$

When the square of a natural number subtracted from its cube, the result is 48. Find the number: 

The sum of two numbers is 29, the difference between the squares of those numbers is 145. There will be a difference of those numbers.

$$ {4\over 5}×[{1\over 2}\ of\ 25]+12÷{3\over 4}-32=?$$

What will be the total number of pieces if the length of $$ {5}{1\over4}$$  the rib is cut to 3/4 m length?