<gadget id="calculator">27 - 3</gadget>
<output>24</output>

<result>24</result>
Edwin had some mango. Harold gave him 3 more. Now Edwin has 27 mango. How many mango did Edwin have primitively?
Edwin had some mango. Harold gave him 3 more. Now Edwin has 27 mango. How many mango did Edwin have primitively?