Xiao Ming has 5 yuan, 2 yuan, and 1 yuan each. If he takes 2 of them, how many different currency values can he get?
小明有5元、2元、1元的人民币各一张，如果从中任取2张，可以得到多少种不同的币值．
<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<result>3</result>