Mother squirrel picks pine nuts, 20 per day on sunny days and 12 per day on rainy days. Mother squirrel picks 112 nuts for 8 consecutive days. May I ask how many rainy days have there been in these days?
松鼠妈妈采松子，晴天每天采20颗，雨天每天采12颗，松鼠妈妈一连8天一共采了112颗．请问这几天里一共有几个雨天？
<gadget id="calculator">8 * 20</gadget>
<output>160</output>

<gadget id="calculator">160 - 112</gadget>
<output>48</output>

<gadget id="calculator">20 - 12</gadget>
<output>8</output>

<gadget id="calculator">48 / 8</gadget>
<output>6</output>

<result>6</result>