There were 10000 spectators at a basketball match. 7000 of them were men. Of the remaining spectators, there were 5 times as many children as women. How many children were there?
There were 10000 - 7000 = 
<gadget id="calculator">10000-7000</gadget>
<output>3_000</output>
3000 women and children.
There were 3000 / (5+1) = 
<gadget id="calculator">3000/(5+1)</gadget>
<output>500</output>
500 women.
There are 500 * 5 = 
<gadget id="calculator">500*5</gadget>
<output>2_500</output>
2500 children at the basketball match.

<result>2_500</result>