106. Вычислите: (2 1/3 − 3,5) : (−5/6) + 0,4².

\[\left(\frac73-3.5\right):\left(-\frac56\right)+0.4^2=\left(\frac73-\frac72\right)\cdot\left(-\frac65\right)+0.16=-\frac76\cdot\left(-\frac65\right)+0.16=\frac75+\frac4{25}=\frac{39}{25}=1.56.\]

Ответ: \(1,56\).