SAT Math Hard Practice Quiz
9.
A three-digit number,
XYZ
, is formed of three different
non-zero digits
X
,
Y
, and
Z
. A new number is formed by
rearranging the same three digits. What is the greatest
possible difference between the two numbers? (For ex-
ample, 345 could be rearranged into 435, for a difference
of 435
−
345 = 90.)
10.
An integer is subtracted from its square. The result could
be which of the following?
(A)
A negative integer.
(B)
An odd integer.
(C)
The product of two consecutive even integers.
(D)
The product of two consecutive odd integers.
(E)
The product of two consecutive integers.
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