Example

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

Question

$$\frac{ 4 }{ 0.8 }$$

Answer

5

Solution


Shift the decimals of both 4 and 0.8 to the right by 1 decimal place. (This is needed to convert 0.8 to 8, since long division must divide by a whole number.)
\[40\div 8\]
Use the algorithm method.
5
8|40
40
Therefore, \(4\div 0.8=5\).
\[5\]
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