? – 2³ =(7² – 12 ) + ( 10² -17)

$$ {40 \%}\ of( {20\over 4}×?)=48$$

115% of 4880 – 85% of 1640 = ?

$$ {\sqrt{784}} × \sqrt{6.25} + 56\%\ of\ 450=?+186$$

12 × 15 + 27 – ? = 28% of 400

$$ (17)^{2} + 6 × (13)^{2}-212×6$$

24% of 680 + 16 % of 525 – 22% of 450 =?

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