When rounding whole numbers there are 2 rules to remember: I will use the term rounding digit - which means: When asked to round to the closest tens - your rounding digit is the second number to the left (ten's place) when working with whole numbers. When asked to round to the nearest hundred - the third place from the left is the rounding digit (hundreds place).
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This rule
provides more accuracy and is sometimes referred to as the 'Banker's Rule'.
When the first digit dropped is 5 and there are no digits following or the
digits following are zeros, make the preceding digit even (i.e. round off to
the nearest even digit). E.g., 2.315 and 2.325 are both 2.32 when rounded off
to the nearest hundredth.
765.3682 becomes: 1000 when asked to round to the nearest thousand (1000) 800 when asked to round to the nearest hundred (100) 770 when asked to round to the nearest ten (10) 765 when asked to round to the nearest one (1) 765.4 when asked to round to the nearest tenth (10th) 765.37 when asked to round to the nearest hundredth (100th.) 765.368 when asked to round to the nearest thousandth (1000th) View these Rounding Numbers worksheets for more information When finished, compare your answers with these! How did you do? |