Giải bài 2 trang 160 - SGK Toán lớp 3

$\dfrac{\begin{align} & \,\,\,35820 \\ & + \\ & \,\,\,25079 \\ \end{align}}{\,\,\,\,\,60899}$                             $\dfrac{\begin{align} & \,\,\,92684 \\ & - \\ & \,\,\,45326 \\ \end{align}}{\,\,\,\,\,47358}$

$\dfrac{\begin{align} & \,\,\,72436 \\ & + \\ & \,\,\,\,\,\,9508 \\ \end{align}}{\,\,\,\,\,81944}$                             $\dfrac{\begin{align} & \,\,\,57370 \\ & - \\ & \,\,\,\,\,\,6821 \\ \end{align}}{\,\,\,\,\,50549}$