Xiaodong brought 10 yuan to buy stationery. He bought a pen and a bottle of ink, and the salesperson gave him 2.6 yuan. How much did Xiaodong spend on stationery?
小冬带10元钱去买文具，他买了一支钢笔和一瓶墨水，售货员找给他2.6元钱，小冬买文具共花了多少元钱？
<gadget id="calculator">10 - 2.6</gadget>
<output>7.4</output>

<result>7.4</result>