The answer depends on the units used for 5.670: pounds, milligrams, tons?
5.670 rounded to the nearest whole number is 6
5 g
If that's grams, it rounds to 2
5 g
564
5.670 rounded to the nearest whole number is 6
5670
4 g
100
6
1.0 is already rounded to the nearest tenths.
5 g
6 g
It is 27 grams.
5 g
564
If that's grams, it rounds to 2