Xiaowen is 13 years old this year, and his grandfather is five times older than him and 8 years old. How old is his grandfather?
小文今年13岁，爷爷的年龄比他的5倍多8岁，爷爷今年多少岁？
<gadget id="calculator">13 * 5</gadget>
<output>65</output>

<gadget id="calculator">65 + 8</gadget>
<output>73</output>

<result>73</result>