Uncle Wang transported the harvested apples to other places. He has already filled 15 carts with 28 baskets per cart, and there are 16 baskets left. How many baskets of apples did Uncle Wang collect in total?
王大伯把收获的苹果运往外地，已经装满15车，每车28筐，还剩下16筐，王大伯一共收花苹果多少筐？
<gadget id="calculator">28 * 15</gadget>
<output>420</output>

<gadget id="calculator">420 + 16</gadget>
<output>436</output>

<result>436</result>