Zhao Ming's weight is 52.25 kg, Sun Guang is 5.38 kg lighter than Zhao Ming, and Wang Qiang is 1.28 kg heavier than Sun Guang. How many kg does Wang Qiang weigh?
赵明的体重52.25千克，孙光比赵明轻5.38千克，王强比孙光重1.28千克，王强的体重是多少千克？
<gadget id="calculator">52.25 - 5.38</gadget>
<output>46.87</output>

<gadget id="calculator">46.87 + 1.28</gadget>
<output>48.15</output>

<result>48.15</result>