Final answer:
The difference between 5.78 and 0.246 is 5.53
Step-by-step explanation:
To find the difference between 5.78 and 0.246, we subtract the two numbers. 5.78 - 0.246 = 5.534. Since the original numbers have three significant figures, our final answer should also have three significant figures. Therefore, the correct answer is 5.53.