The answer depends on the units used for 8.23 : clearly the answer will be very different depending on whether you means 8.23 feet, 8.23 micrometres, or 8.23 kilometres, or any other unit for measuring distance.
5.56 rounded to the nearest whole metre is 6.
109 yards (rounded to nearest whole yard).
823 becomes 800 when rounded to the nearest hundred.
800
477000000
1
4 metres
61426.1 to the nearest meter is 61426m
7.3km to the nearest meter is 7km
4363m to the nearest tenth of a meter is 4363.0m
the nearest 3.80 or 380cm
98.6m rounded to the nearest meter is 99 meters.