Mr. Wang spent 56.6 yuan on the book, and there is 32.8 yuan left. How much did Mr. Wang bring?
王老师买书花了56.6元，还剩下32.8元，王老师带了多少钱？
<gadget id="calculator">56.6 + 32.8</gadget>
<output>89.4</output>

<result>89.4</result>