The grain store has to transport 49.5 tons of rice today, five times in the morning, 4.5 tons each time, how many more times will it take to finish in the afternoon?
粮店今天要运49.5吨大米，上午运了5次，每次运4.5吨，下午还要运几次才能运完？
<gadget id="calculator">4.5 * 5</gadget>
<output>22.5</output>

<gadget id="calculator">49.5 - 22.5</gadget>
<output>27</output>

<gadget id="calculator">27 / 4.5</gadget>
<output>6</output>

<result>6</result>