For a number such as 347.213 it means ignoring all places to the right of the decimal point except the first - hence 347.2However if the next number (in this case the second number after the point,...
348.7
If the number is truly 1, and you are wanting it with 2 decimal places, then your answer is: 1.00
1.7
0.3 rounded to 1 dp IS 0.3!
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