store purchased 650 boxes of mung bean ice cream, and milk ice cream was 500 boxes less than twice the amount of mung bean ice cream. How many boxes of ice cream were purchased in total?
一商店购进绿豆雪糕650箱，牛奶雪糕比绿豆雪糕的2倍少500箱，一共购进多少箱雪糕？
<gadget id="calculator">650 * 2</gadget>
<output>1_300</output>

<gadget id="calculator">1_300 - 500</gadget>
<output>800</output>

<gadget id="calculator">800 + 650</gadget>
<output>1_450</output>

<result>1_450</result>