A calculator is 45 yuan, and the price of a computer is 80 times that of the calculator. How much is the total cost of buying a computer and a calculator?
一个计算器45元，一台电脑的价钱是这个计算器的80倍，买一台电脑和一个计算器一共需要多少元？
<gadget id="calculator">45 * 80</gadget>
<output>3_600</output>

<gadget id="calculator">3_600 + 45</gadget>
<output>3_645</output>

<result>3_645</result>