The New Year is coming, Xiaoxiao personally made 12 greeting cards and plans to send them to relatives and friends in other places. If each stamp is 8 cents and each envelope is 2 cents, how much will it cost to send 12 greeting cards?
新年快到了，笑笑亲手做了12张贺卡打算寄给外地的亲戚和朋友，如果每张邮票8角，每个信封2角，寄12张贺卡，要花多少元？
<gadget id="calculator">0.8 + 0.2</gadget>
<output>1</output>

<gadget id="calculator">1 * 12</gadget>
<output>12</output>

<result>12</result>