There are 450 hens in the chicken farm, and the number of chicks is three times the number of hens. How many chickens are there in the chicken farm?
养鸡场有母鸡450只，小鸡的只数是母鸡的只数的3倍，养鸡场共有鸡多少只？
<gadget id="calculator">450 * 3</gadget>
<output>1_350</output>

<gadget id="calculator">450 + 1_350</gadget>
<output>1_800</output>

<result>1_800</result>