A woolen sweater is 158 yuan, and the price of a coat is 4 times that of a woolen sweater. How much does it cost to buy a coat and a sweater?
一件羊毛衫是158元，一件大衣的价钱是一件羊毛衫的4倍．买一件大衣和一件羊毛衫一共需要多少钱？
<gadget id="calculator">158 * 4</gadget>
<output>632</output>

<gadget id="calculator">632 + 158</gadget>
<output>790</output>

<result>790</result>