Isabel has $204 in her piggy bank. She spent half the amount and bought a toy. She then spent half of the remaining money and bought her brother a book. How much money, in dollars, was left over?
After buying the toy, Isabel has 204/2=
<gadget id="calculator">204/2</gadget>
<output>102</output>
102 dollars left.
Isabel has 102/2=
<gadget id="calculator">102/2</gadget>
<output>51</output>
51 dollars left.

<result>51</result>