en.wikipedia.org/wiki/Rounding

Rounding a numerical value means replacing it by another value that is
approximately equal .... Rounding a number y to the nearest integer requires
some tie-breaking rule for those cases when y is e...

www.factmonster.com/math/numbers/rounding.html

Rounding numbers rules including fractions and sums examples.

www.e-education.psu.edu/egee102/node/1899

Rules for Rounding Off Numbers. Printer-friendly version. Rule 1: Determine what
your rounding digit is and look at the digit to the right of it (highlighted digit).

www.math.com/school/subject1/lessons/S1U1L3DP.html

If it is five, the rule is to always round up (add one to the rounding digit). This rule
was created to "break the tie" when you are rounding a number that is exactly ...

mathforum.org/library/drmath/view/58972.html

I remember learning a way to round certain numbers, but now I think I am going
crazy! ... Can you let me know if I learned the "rule" incorrectly?

www.montereyinstitute.org/courses/DevelopmentalMath/COURSE_TEXT_RESOURCE/U01_L1_T2_text_final.html

Round whole numbers to specific place values, including tens, hundreds, and
thousands. Introduction ... These are the rules for rounding whole numbers:.

www.aaamath.com/est-dec-round.htm

Rules for rounding decimals. 1. Retain the correct number of decimal places (e.g.
3 for thousandths, 0 for whole numbers) 2. If the next decimal place value is 5 ...

www.mathatube.com/rounding-rules-for-rounding.html

Rules for rounding whole numbers. To round a number to a particular place, look
at the digit to its right. If it is 5 or more, round up. If it is 4 or less, round down.

www.mathsisfun.com/rounding-numbers.html

Rounding means making a number simpler but keeping its value close to ...
Example: 73 rounded to the nearest ten is 70, because 73 is closer to 70 than to
80.

www.math-only-math.com/round-a-decimal.html

How to round a decimal number? We will follow the rules to round a decimal
number to the nearest whole number, tenths, hundredths and thousandths.