The school bought 4 basketballs at 52 yuan each; and 6 volleyballs at a total cost of 216 yuan. How much did it cost to buy the two balls?
学校买了4个篮球，每个52元；还买了6个排球共花216元．买两种球一共用了多少元？
<gadget id="calculator">52 * 4</gadget>
<output>208</output>

<gadget id="calculator">208 + 216</gadget>
<output>424</output>

<result>424</result>