A cuboid goldfish bowl is 8 decimeters long, 5 decimeters wide, and 6 decimeters high. The glass on the bottom and the right side is accidentally broken. What is the area of the glass to be repaired?
一个长方体的金鱼缸，长是8分米，宽是5分米，高是6分米，不小心下面和右面的玻璃被打坏了，修理时配上的玻璃的面积是多少平方分米．
<gadget id="calculator">8 * 5</gadget>
<output>40</output>

<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<gadget id="calculator">40 + 30</gadget>
<output>70</output>

<result>70</result>