Correct notation for rounding off numbers e.g. $201.7 \times 0.028 = 5.6476 = 5.6$ What would be the correct notation to rounding off numbers:
Option 1
$$201.7 \times 0.028 = 5.6476 = 5.6$$
Option 2
$$201.7 \times 0.028 = 5.6476 \approx 5.6$$
PS: I am not sure I inserted the most appropriate tag for this question.
Thank you

The second way
$$201.7 \times 0.028 = 5.6476 \approx 5.6$$
is to prefer unless we don't specify in some way that we are rounding the result to the first decimal digit.
