Question

imagine that the number 2 button on your calculator is damaged and cannot be used.use a flow chart to show 3 different ways in which you can calculate 24x12

Answer 1

$\left\begin{array}{ccc}24=3\cdot8\\12=3\cdot4\end{array}\right\}24\cdot12=3\cdot8\cdot3\cdot4\\\\\\\left\begin{array}{ccc}24=144:6\\12=36:3\end{array}\right\}24\cdot12=144:6\cdot36:6\\\\\\\left\begin{array}{ccc}24=96:4\\12=48:4\end{array}\right\}24\cdot12=96:4\cdot48:4\\\\\\\left\begin{array}{ccc}24=16+8\\12=9+3\end{array}\right\}24\cdot12=(16+8)\cdot(9+3)\\sequence\ of\ key:16+18=M+;\ 9+3=\times MR=$