EX-99

Net investment income (loss) and net realized gain (loss) may differ for
financial statement and tax purposes. The character of dividends and
distributions made during the fiscal year from net investment income or net
realized gains may differ from their ultimate characterization for federal
income tax purposes. Also, due to timing of dividends and distributions, the
fiscal year in which amounts are distributed may differ from the fiscal year in
which the income or net realized gain was recorded by the Trust.

                                                         REDUCTION TO
             INCREASE            REDUCTION TO         ACCUMULATED NET
             TO PAID-IN       ACCUMULATED NET           REALIZED GAIN
             CAPITAL          INVESTMENT LOSS          ON INVESTMENTS
             --------------------------------------------------------
             $3                       $14,140                 $14,143

EX-23

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Shareholders and Board of Trustees of
Centennial Money Market Trust:

In planning and performing our audit of the financial statements of Centennial
Money Market Trust, (the "Fund"), as of and for the year ended June 30, 2006, in
accordance with the standards of the Public Company Accounting Oversight Board
(United States), we considered its internal control over financial reporting,
including control activities for safeguarding securities, as a basis for
designing our auditing procedures for the purpose of expressing our opinion on
the financial statements and to comply with the requirements of Form N-SAR, but
not for the purpose of expressing an opinion on the effectiveness of the Fund's
internal control over financial reporting. Accordingly, we express no such
opinion.

The management of the Fund is responsible for establishing and maintaining
effective internal control over financial reporting. In fulfilling this
responsibility, estimates and judgments by management are required to assess the
expected benefits and related costs of controls. A company's internal control
over financial reporting is a process designed to provide reasonable assurance
regarding the reliability of financial reporting and the preparation of
financial statements for external purposes in accordance with generally accepted
accounting principles. Such internal control includes policies and procedures
that provide reasonable assurance regarding prevention or timely detection of
unauthorized acquisition, use, or disposition of a company's assets that could
have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting
may not prevent or detect misstatements. Also, projections of any evaluation of
effectiveness to future periods are subject to the risk that controls may become
inadequate because of changes in conditions, or that the degree of compliance
with the policies or procedures may deteriorate.

A control deficiency exists when the design or operation of a control does not
allow management or employees, in the normal course of performing their assigned
functions, to prevent or detect misstatements on a timely basis. A significant
deficiency is a control deficiency, or combination of control deficiencies, that
adversely affects the company's ability to initiate, authorize, record, process,
or report external financial data reliably in accordance with generally accepted
accounting principles such that there is more than a remote likelihood that a
misstatement of the company's annual or interim financial statements that is
more than inconsequential will not be prevented or detected. A material weakness
is a significant deficiency, or combination of significant deficiencies, that
results in more than a remote likelihood that a material misstatement of the
annual or interim financial statements will not be prevented or detected.

Our consideration of the Fund's internal control over financial reporting was
for the limited purpose described in the first paragraph and would not
necessarily disclose all deficiencies in internal control that might be
significant deficiencies or material weaknesses under standards established by
the Public Company Accounting Oversight Board (United States). However, we noted
no deficiencies in the Fund's internal control over financial reporting and its
operation, including controls for safeguarding securities, that we consider to
be a material weakness, as defined above, as of June 30, 2006.

This report is intended solely for the information and use of management and the
Board of Trustees of Centennial Money Market Trust and the Securities and
Exchange Commission and is not intended to be and should not be used by anyone
other than these specified parties.


Deloitte & Touche LLP

Denver, Colorado
August 8, 2006