What is the difference between the sum of 320 and 150 and the subtraction of 720 divided by 8?
320与150的和减法720除以8的商，差是多少．
<gadget id="calculator">720 / 8</gadget>
<output>90</output>

<gadget id="calculator">150 - 90</gadget>
<output>60</output>

<gadget id="calculator">320 + 60</gadget>
<output>380</output>

<result>380</result>