Example

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

Question

$$\begin{aligned}25&\\ \underline{\times25}&\end{aligned}$$

Answer

625

Solution


Use the algorithm method.
25
×25
12
125
1
500
625
Therefore, \(25\times 25=625\).
\[625\]
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