When Ma Xiaohu calculated 278 and added a number, he accidentally lost the "0" at the end of the number, and the calculated number was 294. What should be the correct number
马小虎计算278加一个数时，不小心把这个数末尾的"0"看丢了，算出的得数是294．正确的得数应该是多少
<gadget id="calculator">278 + 160</gadget>
<output>438</output>

<result>438</result>