1.6524 has 5 SF and 4 SF after the decimal point.
5.67 has 3 SF and 2 SF after the decimal point.
First we will add the numbers and then we will round the answer to the correct number of SF.
1.6524 + 5.67 = 7.3224
5.67 has 2 SF after the decimal point and is the number with the least amount of SF after the decimal point. So we have to round the answer to the second decimal place.
Answer: 7.32