The students moved bricks to repair the garden. There were 243 students in the fifth grade and 257 students in the sixth grade. Each person moved 4 bricks on average. How many bricks did they move in total?
同学们搬砖维修花园，五年级有243人，六年级有257人，平均每人搬4块砖．他们一共搬了多少块砖？
<gadget id="calculator">243 + 257</gadget>
<output>500</output>

<gadget id="calculator">500 * 4</gadget>
<output>2_000</output>

<result>2_000</result>