It is 8.2
Most schools teach you to always round 5 up. However, doing so is inappropriate because it introduces an upward bias. The IEEE (Institute of Electronic and Electrical Engineers) standard 754 is to round 5 up or down so that the new last digit is even. See link for more: //en.wikipedia.org/wiki/Rounding#Round_half_to_even
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2.7
1560
987 rounded to the nearest 100 is 1000.
It is 232.4 when rounded to the nearest tenth
It is then 20.2 when rounded to the nearest tenth