1 , 8 ≈ 2
Rounding is used to make a number simpler while keeping it close to the original value. In this case, the number 1.8 rounded to one decimal place remains 1.8, as the digit at the one decimal place (8) is the same as the original number. ;
Rounding 1.85 to one decimal place means looking at the digit in the hundredths place to determine if we round up. Since the digit is 5, we round up the tenths digit of 8 to 9. Thus, 1.85 rounded to one decimal place is 1.9.
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