Tính: 100 - 25,042 = ; 216,72 : 4,2 = ; 6,127 * 38 = ; 17,36 + 275,34 +0,8 =

* Hướng dẫn giải

$\begin{array}{l}100\\ -\underset{¯}{26,042}\\ 73,958\end{array} \to 100 – 26,042 = 73,958$

$\begin{array}{l}6,127\\ \times \underset{¯}{\text{\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}\hspace{0.17em}38}}\\ 49016\\ \underset{¯}{18381}\\ 232,826\end{array} \to 6,127 x 38 = 232,826$

$\begin{array}{l}216,72\left|\begin{array}{l}\underset{¯}{4,2}\\ 51,6\\ \\ \end{array}\right.\\ 0672\\ 2520\\ 000\end{array}\to 216,72:4,2=51,6$

$\begin{array}{l}17,36\\ +275,34\\ \underset{¯}{0,8}\\ 293,50\\ \\ \end{array} \to 17,36+275,34+0,8=293,50$