<PAGE>

                                 PROMISSORY NOTE

                        FOR VALUE RECEIVED, the undersigned hereby promises to
pay to the order of Adaytum Asia Pacific Pty Limited ("Adaytum"), the sum of One
Hundred Twenty-Seven Thousand One Hundred Nine Dollars and No Cents
($127,109.00) in Australian Dollars, together with interest on the unpaid
principal balance thereof. Commencing April 1, 2000 and continuing until this
Note is due March 31, 2002, interest shall accrue on the Note based on the rate
of interest for the Fringe Benefits Tax ("FBT") in Australia, which rate is
currently 7.3% for the FBT year commencing April 1, 2000, as adjusted on an
annual basis. Interest shall be payable in consecutive quarterly installments,
according to the attached schedule, with the first installment due June 30,
2000. The principal balance shall be due in full on March 31, 2002. All payments
shall be first applied to interest and the balance to principal. All payments
hereunder shall be made to such address as may from time to time be designated
by Adaytum or any holder hereof.

         Payment of this Note is secured by a Pledge Agreement.

         This Note may be prepaid, at any time, in whole or in part, without
penalty. No partial payments shall suspend or reduce the amount of the remaining
installment payments of principal and interest hereunder as noted on the
attached payment schedule.

         This Note shall at the option of the holder hereof be immediately due
and payable upon failure to make any payment due hereunder. The undersigned
hereby agrees to pay, on demand, all costs of collection incurred by Adaytum or
any holder hereof , including reasonable attorneys' fees and legal expenses, in
the event this Note is not paid when due, whether or not legal proceedings are
commenced. Payments not made within ten (10) days of due date shall be subject
to a late charge of eighteen percent (18%). The undersigned hereby waives
demand, presentment for payment, dishonor, notice of dishonor, protest, notice
of protest, notice of nonpayment, notice of acceleration of maturity on default
or otherwise, and consent without affecting liability hereunder, to any and all
extensions, renewals, substitutions, and alterations of any of the terms of this
Note and to the release of, or failure by Adaytum or any holder hereof to
exercise any rights against any party liable for payment hereof or any property
securing payment hereof. Any such extension, renewal, substitution, alteration
or release may be made without notice to said parties.

         Upon the occurrence of an event of default under this Note, Adaytum or
any holder hereof shall have the right to set off any and all amount due
hereunder by the undersigned to Adaytum or any holder hereof this Note against
any indebtedness or obligation of Adaytum or any holder hereof to the
undersigned.

         The rights and remedies of Adaytum or any holder hereof shall be
cumulative and concurrent, and may be pursued singularly, successively, or
together against the undersigned, any collateral, and any other funds, property
or security held by the holder for the payment of the indebtedness due under
this Note. The failure to exercise any such right or remedy shall in no event be
construed as a waiver or release of such rights or remedies or of the right to
exercise then at any later time.

         Signed and sealed under pains and penalties of perjury this 31st day of
March, 2000.

                                           /S/  M. F. Giles Haddleton
                                           ------------------------------------
                                           Michael Francis Giles Haddleton

<PAGE>

                                PLEDGE AGREEMENT

         BE IT KNOWN, for value received, the undersigned, Michael Francis Giles
Haddleton, ("Pledgor") of 14 Lisle Street, Narrabeen, NSW 2101, Australia,
hereby deposits, delivers to and pledges with Adaytum Asia Pacific Pty Limited
("Pledgee") of Pritchard Adams, Level 3, 1 Chandos Street, St Leonards, NSW
2065, Australia, as collateral security to secure the payment of One Hundred
Twenty-Seven Thousand One Hundred Nine Dollars and No Cents ($127,109.00) in
Australian Dollars, together with interest on the unpaid principal balance based
on the rate of interest for the Fringe Benefits Tax ("FBT") in Australia, which
rate is currently 7.3% for the FBT year commencing April 1, 2000, as adjusted on
an annual basis, payable as provided in a promissory note dated June 9, 2000,
the following described property: The shares of stock, described as 26,786
shares of common stock of Adaytum Software, Inc. ("Corporation") represented as
Stock Certificate No. 72.

         It is further agreed:

         1. Pledgee may assign or transfer said debt and the collateral pledged
hereunder to any third party.

         2. In the event a stock dividend or further issue of stock in the
Corporation is issued to the Pledgor, the Pledgor shall pledge said shares as
additional collateral for the debt.

         3. That during the term of this pledge agreement, and so long as it is
not in default, the Pledgor shall have full rights to vote said shares and be
entitled to all dividends income, except that stock dividends shall also be
pledged.

         4. That during the pendency of this pledge agreement, the Pledgor shall
not issue any proxy or assignment of rights to the pledged shares.

         5. The Pledgor warrants and represents it has good title to the shares
being pledge, they are free from liens and encubrances or prior pledge, and the
Pledgor has full authority to transfer said shares as collateral security.

         6. Upon default of payment of the debt, or breach of this pledge
agreement, the Pledgee or holder shall have full rights to foreclose on the
pledged shares and exercise its rights as a secured party; and said rights being
cumulative with any other rights the Pledgee or holder may have against the
Pledgor.

         The Pledgor understands that upon foreclosure the pledged shares may be
sold at public auction or public sale. The Pledgor shall be provided reasonable
notice of any said intended sale and the Pledgor shall have full rights to
redeem said shares at any time prior to said sale upon payment of the balance
due hereunder, and accrued costs of collection.

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In the event the shares shall be sold for less than the amount then owing, the
Pledgor shall be liable for any deficiency.

         Upon payment of the obligation for which the shares are pledged, the
shares shall be returned to the Pledgor and this pledge agreement shall be
terminated.

         This pledge agreement shall be binding upon and inure to the benefit of
the parties, their successors, assigns and personal representatives.

         Upon default the Pledgor shall pay all reasonable attorneys' fees and
cost of collections.

Signed this 31st day of March, 2000.

/S/  Marion Chirgwin                          /S/  M. F. Giles Haddleton
---------------------------------             ---------------------------------
Witness                                       Pledgor

Marion Chirgwin                               M. F. Giles Haddleton
---------------------------------             ---------------------------------
Witness                                       Pledgee