Example

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

Question

$$3 \times 17.9$$

Answer

53.7

Solution


Use the algorithm method.
3
×17.9
2
2.7
2
21.0
30.0
53.7
Therefore, \(3\times 17.9=53.7\).
\[53.7\]
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