epdf.pub_cbest-cliffs-test-prep13a9b242c7cb4125e6cca92d00a73d5a41681

Part II: Analysis of Exam Areas
Simplifying this problem first means changing 1 ⁄5 to .2. Next change 0.02 percent
to 0.0002 (that is . 02 # . 01 = 0.
0002).
Now that you have simplified the problem, multiply . 2 # 0.
0002 which gives
0.00004. The correct answer is E.
Simplifying can make a problem much easier to solve.
Make Comparisons
At times, questions require you to compare the sizes of several decimals, or several
fractions. If you’re comparing decimals, make sure that the numbers you compare
have the same number of digits. (Remember: You can insert or eliminate zeros to
the far right of a decimal point without changing the value of the number.)
Samples
28. Which of the following answer choices places the decimal fractions .6, .16,
.66 2 ⁄3, .58, in order from smallest to largest?
A. .6, .16, .66 2 ⁄3, .58
B. .58, .16, .6, .66 2 ⁄3
C. .16, .58, .6, .66 2 ⁄3
D. .66 2 ⁄3, .6, .58, .16
E. .58, .6, .66 2 ⁄3, .16
Rewrite .6 as .60 so that all the decimals have the same number of digits: .60, .16,
.66 2 ⁄3, .58. Treating these as though the decimal point were not there (you can do
this only when all the numbers have the same number of digits to the right of the
decimal), the order is as follows: .16, .58, .60, .66 2 ⁄3. The correct answer is C.
Remember to circle “smallest to largest” in the question.
29. Which of the following answer choices places the fractions 5 ⁄8, 3 ⁄4, 2 ⁄3, in
order from smallest to largest?
A. 2
⁄3, 3 ⁄4, 5 ⁄8
B. 2
⁄3, 5 ⁄8, 3 ⁄4
C. 5
⁄8, 2 ⁄3, 3 ⁄4
D. 3
⁄4, 5 ⁄8, 2 ⁄3
E. 3
⁄4, 2 ⁄3, 5 ⁄8
Find the common denominator: 5 ⁄8 = 15 ⁄24, 3 ⁄4 = 18 ⁄24, 2 ⁄3 = 16 ⁄24.
56