Teacher Li brought 1,000 yuan and bought 24 basketballs, each of which is 35 yuan. How much money is left?
李老师带了1000元，买了24个篮球，每个篮球35元，还剩多少元钱？
<gadget id="calculator">35 * 24</gadget>
<output>840</output>

<gadget id="calculator">1_000 - 840</gadget>
<output>160</output>

<result>160</result>