epdf.pub_cbest-cliffs-test-prep13a9b242c7cb4125e6cca92d00a73d5a41681

Part IV: Mathematics Review
40.012
x 3.1
40012
120036
124.0372
3 digits
1 digit
4 digits
total of 4 digits above the line
to the right of the decimal point
decimal point placed so there are
the same number of digits to the
right of the decimal point
Dividing Decimals
Dividing decimals is the same as dividing other numbers, except that if the divisor
(the number you’re dividing by) has a decimal, you move it to the right as many
places as necessary until it is a whole number. Then move the decimal point in the
dividend (the number being divided into) the same number of places. Sometimes
you may have to add zeros to the dividend (the number inside the division sign).
1. 25 5. = 125 500 4
. .
g
or
13000
. 002 26 = 2 26000. .
g
g
g
Changing Decimals to Percents
To change decimals to percents:
1. Move the decimal point two places to the right.
2. Insert a percent sign.
. 75 = 75%
. 05 = 5%
Changing Percents to Decimals
To change percents to decimals:
1. Eliminate the percent sign.
2. Move the decimal point two places to the left (sometimes adding zeros is
necessary).
75% = . 75 5% = . 05
23% = . 23 .% 2 = . 002
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