Build a 3-meter-long and 1-meter-wide path on a rectangular land with a length of 48 meters and a width of 30 meters. Tomatoes are planted in other parts. How much area is planted with tomatoes?
在长48米，宽30米的长方形的地上建一条3米长、1米宽的小路，其他部分种植西红柿，种植西红柿的面积有多少？
<gadget id="calculator">48 * 30</gadget>
<output>1_440</output>

<gadget id="calculator">3 * 1</gadget>
<output>3</output>

<gadget id="calculator">1_440 - 3</gadget>
<output>1_437</output>

<result>1_437</result>