The school planted 13 rows of roses, 12 in each row, and 8 rows of chrysanthemums, 24 in each row. How many more chrysanthemums than roses?
学校在地里栽了13排月季花，每排12棵；还栽了8排菊花，每排24棵，菊花比月季花多多少棵？
<gadget id="calculator">24 * 8</gadget>
<output>192</output>

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

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

<result>36</result>