Xiao Liang bought a stationery box for 11 yuan, bought a small ball for 5.3 yuan, and bought a pen for 6.6 yuan. How much did Xiao Liang spend in total?
小亮买了一个文具盒用去11元，买了一个小皮球用去5.3元，又买了一枝钢笔用去6.6元，小亮一共用去多少元？
<gadget id="calculator">11 + 5.3 + 6.6</gadget>
<output>22.9</output>

<result>22.9</result>