Doudou has planted 40 rose trees, and each rose has about 30 seeds. How many rose seeds are there in total?
豆豆种了40棵月季花，每棵月季花大约有30粒种子，一共大约有多少粒月季花种子？
<gadget id="calculator">30 * 40</gadget>
<output>1_200</output>

<result>1_200</result>