Xiao Ming is 10 years old this year, his grandfather is 6 times older than him and 4 years old, how old is his grandfather this year?
小明今年10岁，爷爷的年龄是他的6倍多4岁，爷爷今年多少岁．
<gadget id="calculator">10 * 6</gadget>
<output>60</output>

<gadget id="calculator">60 + 4</gadget>
<output>64</output>

<result>64</result>