In the flower garden, 13 rows of chrysanthemums were planted, with 12 plants in each row; 8 rows of roses were planted, with 24 plants in each row. How many roses are there more than chrysanthemums?
花圃里种了13排菊花，每排12株；种了8排月季，每排24株．月季比菊花多多少株？
<gadget id="calculator">8 * 24</gadget>
<output>192</output>

<gadget id="calculator">13 * 12</gadget>
<output>156</output>

<gadget id="calculator">192 - 156</gadget>
<output>36</output>

<result>36</result>