(308*509):)840:30)=?
(308*509):(840:30)=156772:28=5599
(308× 509):(840: 3о ) - 156772 : 28=5599
5599
калькулятор5849.70149254 RadDeg x! Inv sin ln π cos log e tan √ Ans EXP xy ( ) % AC 7 8 9 ÷ 4 5 6 × 1 2 3 - 0 . = +