The school bought some table tennis balls for the table tennis team. 175 pieces have been used up, and there are 25 boxes left, 5 pieces in each box. How many table tennis balls did the school buy for the table tennis team?
学校给乒乓球队买了一些乒乓球．已经用坏了175个，还剩下25盒，每盒5个．学校一共给乒乓球队买了多少个乒乓球？
<gadget id="calculator">25 * 5</gadget>
<output>125</output>

<gadget id="calculator">125 + 175</gadget>
<output>300</output>

<result>300</result>