- Write the number: (20.83).
- Find the tenths digit (first digit after the decimal).
In (20.83), the tenths digit is (8).
- Look at the next digit (the hundredths place).
In (20.83), the hundredths digit is (3).
- Use the rounding rule for tenths:
If the hundredths digit is (ge 5), increase the tenths digit by (1).
If the hundredths digit is (< 5), keep the tenths digit the same and drop the rest.
- Here, (3 < 5), so keep the tenths digit (8) as it is.
- Drop everything after the tenths place.
So, (20.83) rounded to the nearest tenths is (20.8).