<gadget id="calculator">152 - 91</gadget>
<output>61</output>

<result>61</result>
Julietta had 152 Pen. Ann get hold of some Pen. Now Julietta has 91  Pen. How many did Ann get hold ofs?
Julietta had 152 Pen. Ann get hold of some Pen. Now Julietta has 91 Pen. How many did Ann get hold ofs?