Each basketball is 68 yuan, which is 18 yuan more than each volleyball. The school bought 3 basketballs and 5 volleyballs. How much is the total cost?
篮球每个68元，比每个排球多18元，学校买了3个篮球和5个排球，一共要用多少元．
<gadget id="calculator">68 * 3</gadget>
<output>204</output>

<gadget id="calculator">68 - 18</gadget>
<output>50</output>

<gadget id="calculator">50 * 5</gadget>
<output>250</output>

<gadget id="calculator">204 + 250</gadget>
<output>454</output>

<result>454</result>