4 notebooks and 6 pencils, paid 9.6 yuan in total, 1.2 yuan for each notebook, x yuan for each pencil.
4个本子和6支铅笔，共付了9.6元，每个本子1.2元，每支铅笔x元．
<gadget id="calculator">4 * 1.2</gadget>
<output>4.8</output>

<gadget id="calculator">9.6 - 4.8</gadget>
<output>4.8</output>

<gadget id="calculator">4.8 / 6</gadget>
<output>0.8</output>

<result>0.8</result>