Tính: a, 10,36 - 8,64 ; b, 6,127 x 34 ; c, 375 - 269,3 ; d, 81,36 : 12

* Hướng dẫn giải

$$\begin{gathered} a, \\ \begin{array}{l}10,36\\ -\underset{¯}{8,64}\\ 1,72\end{array} \\ b, \\ \begin{array}{l}375\\ -\underset{¯}{269,3}\\ 105,7\end{array} \\ c, \\ \begin{array}{l}6,127\\ \times \underset{¯}{34}\\ 24508\\ \underset{¯}{18381}\\ 208,318\end{array} \\ d, \\ \begin{array}{l}81\cancel{,}36\left|\begin{array}{l}\underset{¯}{1200}\\ 6,78\end{array}\right.\\ 09360\\ 09600\\ 0000\end{array} \end{gathered}$$