The farm raised 5,000 ducks this year, 1,000 more than last year. How many ducks have you raised in total in the past two years?
农场今年养鸭5000只，比去年多养1000只．这两年共养鸭多少只？
<gadget id="calculator">5_000 - 1_000</gadget>
<output>4_000</output>

<gadget id="calculator">4_000 + 5_000</gadget>
<output>9_000</output>

<result>9_000</result>