Arithmetic Study Guide for the
ACCUPLACER Assessment Test
DECIMALS
Adding and Subtraction Decimals
Multiplying Decimals
Multiply 1.89 x 5.03 = ___

Step 1: Multiply the decimals
as you would do with whole
Step 2: T hen count the number of
spaces of each factor being multiplied. Decimal
places are the number of spaces to the right of the decimal point, There
is 2 in
the top factor and two in the bottom factor, so the decimal is placed 4
spaces
from the right.
Step 3: Show the total number of places in your answer. 
Dividing a Decimal by a Whole Number
Example: 

Place the decimal point directly above its
position in the problem.
Then divide the same way as you divide whole numbers. 
Dividing a Decimal by a Decimal Number
Example: 

Move the decimal point of the divisor
( outside the bracket ) as far right as you cango. Then move the decimal
point in the dividend (inside the bracket) the samenumber of places as
the divisor. 
Place the decimal point directly above its position in the
problem. Then divide the same way as divide whole numbers.