EX-23

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


To the Trustees and Shareholders of
Centennial Money Market Trust:

In planning and performing our audit of the financial statements of Centennial
Money Market Trust (the "Fund") for the year ended June 30, 2004 (on which we
have issued our report dated August 13, 2004), we considered its internal
control activities for safeguarding securities, in order to determine our
auditing procedures for the purpose of expressing our opinion on the financial
statements and to comply with the requirements of Form N-SAR, and not to provide
assurance on the Fund's internal control.

The management of the Fund is responsible for establishing and maintaining
internal control. In fulfilling this responsibility, estimates and judgments by
management are required to assess the expected benefits and related costs of
controls. Generally, controls that are relevant to an audit pertain to the
entity's objective of preparing financial statements for external purposes that
are fairly presented in conformity with accounting principles generally accepted
in the United States of America. Those controls include the safeguarding of
assets against unauthorized acquisition, use, or disposition.

Because of inherent limitations in any internal control, misstatements due to
error or fraud may occur and not be detected. Also, projections of any
evaluation of internal control to future periods are subject to the risk that
the internal control may become inadequate because of changes in conditions or
that the degree of compliance with policies or procedures may deteriorate.

Our consideration of the Fund's internal control would not necessarily disclose
all matters in the internal control that might be material weaknesses under
standards established by the American Institute of Certified Public Accountants.
A material weakness is a condition in which the design or operation of one or
more of the internal control components does not reduce to a relatively low
level the risk that misstatements caused by error or fraud in amounts that would
be material in relation to the financial statements being audited may occur and
not be detected within a timely period by employees in the normal course of
performing their assigned functions. However, we noted no matters involving the
Fund's internal control and its operation, including controls for safeguarding
securities, that we consider to be material weaknesses as defined above as of
June 30, 2004.

This report is intended solely for the information and use of management, the
Trustees and Shareholders 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.


/s/Deloitte & Touche LLP

August 13, 2004

EX-99

ROCSOP-Centennial Money Market Trust

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. Accordingly,
the following amounts have been reclassified for June 30, 2004. Net assets of
the Trust were unaffected by the reclassifications.

                        REDUCTION TO
                        ACCUMULATED NET
INCREASE TO             REALIZED GAIN
PAID-IN CAPITAL         ON INVESTMENTS(1)
- ----------------------------------------
$35,294                 $35,294

1. $35,294, all of which was long-term capital gain,was distributed in
connection with Trust share redemptions.