Example

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

Question

$$\begin{aligned}5.28&\\ \underline{+0.4}&\end{aligned}$$

Answer

28.4

Solution


Use the algorithm method.
28.0
+.4
28.4
Therefore, \(28+0.4=28.4\).
\[28.4\]
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