Zhoupu Township needs to dig a 22.2-kilometer-long canal. It has been dug for 6.5 days, with an average of 1.2 kilometers per day. The rest needs to be dug in 8 days.
周浦乡要挖一条长22.2千米的水渠，已经挖了6.5天，平均每天挖1.2千米，剩下的要求8天挖完，平均每天要挖多少千米？
<gadget id="calculator">6.5 * 1.2</gadget>
<output>7.8</output>

<gadget id="calculator">22.2 - 7.8</gadget>
<output>14.4</output>

<gadget id="calculator">14.4 / 8</gadget>
<output>1.8</output>

<result>1.8</result>