Round 0.985 to one decimal place and enter the number.
Bonne réponse
1 ± 0,001
Explication
The hundredths digit is 8, so the tenths digit 9 rounds up and carries across the decimal point: 0.985 becomes 1.0 at one-decimal precision. Reporting 0.9 ignores the required carry when the next digit is at least 5.