In a school activity, fifty-four students are to be separated into six groups of equal size. If the activity requires 12 groups, how many more groups are needed to form?
There are 54/6 = 
<gadget id="calculator">54/6</gadget>
<output>9</output>
9 groups formed from the 54 students.
So, 12 - 9 = 
<gadget id="calculator">12-9</gadget>
<output>3</output>
3 groups more are needed to form.

<result>3</result>