The tiger in the zoo weighs 280 kg, and the black bear weighs 360 kg. The mass of an elephant is 8 times less than the sum of the weight of a tiger and a black bear, 120 kg. How much is this elephant in kilograms?
动物园里的老虎重280千克，黑熊重360千克．大象的质量是老虎和黑熊重量和的8倍少120千克．这只大象多少千克？
<gadget id="calculator">280 + 360</gadget>
<output>640</output>

<gadget id="calculator">640 * 8</gadget>
<output>5_120</output>

<gadget id="calculator">5_120 - 120</gadget>
<output>5_000</output>

<result>5_000</result>