box of toothpaste is 4.7 yuan, which is 1.2 yuan more expensive than a toothbrush. How much does it cost to buy a box of toothpaste and a toothbrush?
一盒牙膏4.7元，比一个牙刷贵1.2元．买一盒牙膏和一个牙刷共需多少元．
<gadget id="calculator">4.7 - 1.2</gadget>
<output>3.5</output>

<gadget id="calculator">3.5 + 4.7</gadget>
<output>8.2</output>

<result>8.2</result>