Mr. Huang brought 10,000 yuan to buy office equipment, 8,400 yuan to buy a computer, and the rest of the money to buy 400 yuan each printer, how many can you buy?
黄老师带了10000元钱去购置办公设备，买电脑用去了8400元，剩下的钱去买每台400元的打印机，可以买几台？
<gadget id="calculator">10_000 - 8_400</gadget>
<output>1_600</output>

<gadget id="calculator">1_600 / 400</gadget>
<output>4</output>

<result>4</result>