Bianca picked 39 tulips and 49 roses to make flower bouquets. If she only used 81 of the flowers though, how many extra flowers did Bianca pick?
<gadget id="calculator">39 + 49</gadget>
<output>88</output>

<gadget id="calculator">88 - 81</gadget>
<output>7</output>

<result>7</result>