EX-99

November 17, 2003


To the Trustees and Shareholders of Putnam Money Market Fund:

In planning and performing our audit of the financial statements
of Putnam Money Market Fund for the year ended September 30,
2003, we considered its internal control, including 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, not to provide assurance on internal control.

The management of Putnam Money Market 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 entitys 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 internal controls, errors or
fraud may occur and may not be detected.  Also, projection of any
evaluation of internal control to future periods is subject to
the risk that controls may become inadequate because of changes
in conditions or that the effectiveness of the design and
operation may deteriorate.

Our consideration of internal control would not necessarily
disclose all matters in 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 errors 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
internal control and its operation, including controls for
safeguarding securities, that we consider to be material
weaknesses as defined above as of September 30, 2003.

This report is intended solely for the information and use of
management and the Board of Trustees 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/ PricewaterhouseCoopers LLP

EX-99

fund #010, Putnam Money Market Fund

Because of the electronic format for filing Form N-SAR does not
provide adequate space for responding to certain items correctly,
the correct answers are as follows:

72DD1 	Class A 45,738
	Class B	4,239
	Class C	221

72DD2	Class M	648
	Class R 0
	Class T	287

73A1	Class A	0.0087
	Class B	0.0037
	Class C	0.0037

74A2	Class M	0.0072
	Class R	0.0025
	Class T 0.0062

74U1	Class A 4,745,392
	Class B	874,070
	Class C	61,755

74U2	Class M 74,925
	Class R 1
	Class T	95,777

74V1	Class A 1.0000
	Class B	1.0000
	Class C	1.0000

74V2	Class M 1.0000
	Class R	1.0000
	Class T	1.0000

EX-99

NSAR Item 77I:

On 1/21/03, class R shares were added to the fund.