It is 0.42
Most schools wrongly teach you to always round 5 up (so the answer would be xx.x) but, while this is a simple rule to teach, it is not really correct. Under this rule:
• if the following digit is 0 you don't round;
• if the following digit is 1, 2, 3 or 4 you round down; and
• if the following digit is 5, 6, 7, 8 or 9 you round up.
As a result you are more likely to round up than round down and that introduces an upward bias into your calculations.
The IEEE (Institute of Electronic and Electrical Engineers) standard 754 is to round 5 up or down so that the new last digit is even. See link for more: //en.wikipedia.org/wiki/Rounding#Round_half_to_even
It then is 3.69 when rounded to two decimal places
The product will have at most 2 decimal places.
0.6851 to 4 decimal places 0.685 to three decimal places 0.69 to two decimal places 0.7 to one decimal place
It's already rounded to two decimal places.
8.588 rounded to two decimal places is 8.59.
Multiply by 100 or move the decimal point two places to the right = 4.25% This is the same as multiplying by 100
.0425.
0.1 as a decimal with two decimal places is 0.10.
It is 1.01 when rounded to two decimal places
It then is 3.69 when rounded to two decimal places
It is 0.86 to two decimal places
Two decimal places.
It is already in two decimal places as 0.72
Two decimal places means two numbers after the decimal point. (which looks like a period)
The product will have at most 2 decimal places.
0.6851 to 4 decimal places 0.685 to three decimal places 0.69 to two decimal places 0.7 to one decimal place
It is 0.69 to two decimal places