ענו על השאלה הבאה:
השלימו את לוח הכפל החלקי :
\begin{array}{c|c}
\times & 2 & -6 & \INPUTBOX{3}{ltr}{-8} \\
\hline
\INPUTBOX{1}{ltr}{-2} & -4 & \INPUTBOX{5}{ltr}{12} & \INPUTBOX{7}{ltr}{16} \\
\hline
\INPUTBOX{2}{ltr}{-5} & -10 & \INPUTBOX{4}{ltr}{30} & \INPUTBOX{9}{ltr}{40} \\
\hline
10 & \INPUTBOX{6}{ltr}{20} & \INPUTBOX{8}{ltr}{-60} & -80 \\
\end{array}
\begin{array}{c|c}
\times & 2 & -6 & \INPUTBOX{3}{ltr}{-8} \\
\hline
\INPUTBOX{1}{ltr}{-2} & -4 & \INPUTBOX{5}{ltr}{12} & \INPUTBOX{7}{ltr}{16} \\
\hline
\INPUTBOX{2}{ltr}{-5} & -10 & \INPUTBOX{4}{ltr}{30} & \INPUTBOX{9}{ltr}{40} \\
\hline
10 & \INPUTBOX{6}{ltr}{20} & \INPUTBOX{8}{ltr}{-60} & -80 \\
\end{array}