Calculate with two simple methods: 3.2*5.4+54*0.68.
用两种简便方法计算：3.2*5.4+54*0.68．
<gadget id="calculator">3.2 * 5.4</gadget>
<output>17.28</output>

<gadget id="calculator">54 * 0.68</gadget>
<output>36.72</output>

<gadget id="calculator">17.28 + 36.72</gadget>
<output>54</output>

<result>54</result>