answersLogoWhite

0


Best Answer

It is 0.4

Most schools wrongly teach you to always round 5 up (so the answer would be 0.5) 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


User Avatar

Wiki User

6y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

6y ago

0.5

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you round 0.45 to the nearest tenth?
Write your answer...
Submit
Still have questions?
magnify glass
imp