Example

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

Question

$$69 \times 66$$

Answer

4554

Solution


Use the algorithm method.
69
×66
45
414
45
4140
4554
Therefore, \(69\times 66=4554\).
\[4554\]
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