Example

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

Question

$$16.5/2.2$$

Answer

7.5

Solution


Shift the decimals of both 16.5 and 2.2 to the right by 1 decimal place. (This is needed to convert 2.2 to 22, since long division must divide by a whole number.)
\[165\div 22\]
Use the algorithm method.
7.5
22|165.
154.
11.0
11.0
Therefore, \(16.5\div 2.2=7.5\).
\[7.5\]
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