1.  Line up the decimals.
    2.  Fill in the empty spaces with zeroes.
    3.  Start comparing at the highest place value.
    Example:     456.489 ____  45.658947
    4 is larger than 0, so the first number is greater (>). 


    1.  Underline the place value of the digit you are rounding to.
    2.  Look to the RIGHT of the underlined digit.
    3.  If the number is 5 OR MORE, RAISE THE SCORE of the underlined digit.  4 OR LESS, LET IT REST (the underlined digit.)
    4.    Everything AFTER the underlined digit FALLS OFF.
    Example:      Round 47.856 to the nearest tenth.
    1. Underline the tenths place.  47.856. 
    2. Look to the digit to the right of the underlined digit (5).
    3. 5 or more means to raise the score, so the 8 becomes a 9.
    4. The 5 and the 6 fall off.
    Your answer is:  47.9 
    1.  Remember, to estimate simply means to ROUND to the nearest whole number.
    2.  Underline the ONES place and use the TENTHS place to round.
    Example:     $56.78
    The 7 in the tenths place tells me to RAISE THE SCORE. 
    The 6 becomes a 7.  The number before the underlined digit stays the same and everything after falls off.
    So, $56.78 estimates to $57