Round off 27.981 to the nearest tenths.
28.0
Goal: Round 27.981 to the nearest tenths (one decimal place).
Step 1: Identify the tenths digit (the first digit after the decimal point).
Number: \(27.981\)
Tenths digit: \(9\) (in \(27.981\))
Step 2: Look at the next digit (hundredths place) to decide rounding.
Hundredths digit: \(8\) (in \(27.981\))
Step 3 (Rounding rule): If the next digit is \(\ge 5\), increase the tenths digit by \(1\). If it is \(< 5\), keep the tenths digit the same.
Here, \(8 \ge 5\), so we round up.
Step 4: Increase the tenths digit \(9\) by \(1\).
\(9 + 1 = 10\) → this creates a carry to the whole-number part.
Step 5: So \(27.9\) rounded up by \(0.1\) becomes:
\(27.9 + 0.1 = 28.0\)
Final Answer: \(\boxed{28.0}\)