Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$\begin{aligned}13&\\ \underline{\times17}&\end{aligned}$$

Answer

221

Solution


Use the algorithm method.
13
×17
2
91
130
1
221
Therefore, \(13\times 17=221\).
\[221\]
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