4 boxes of biscuits are packed in a box, each box contains 30 pieces, how many pieces are there in 2 boxes of biscuits
4盒饼干装一箱，每盒装30块，2箱饼干有多少块
<gadget id="calculator">4 * 2 * 30</gadget>
<output>240</output>

<result>240</result>