Grandma is 58 years old, 10 years older than Xiaohong's four times. How old is Xiaohong?
奶奶58岁，比小红岁数的4倍还多10岁．小红多少岁？
<gadget id="calculator">58 - 10</gadget>
<output>48</output>

<gadget id="calculator">48 / 4</gadget>
<output>12</output>

<result>12</result>