Discovery Educational Software
  Discovery Educational Software


Free Software

Free Sums program

A simple program for practising addition, subtraction, multiplication and division.

Download here (1.35 mb.)


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Sums game

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Free Sudoku Maker and Game

Creates original Sudoku puzzles for you to print out or solve on screen. Use it to solve a puzzle from a printed source.

Download here (1 mb)

For deluxe version see Total Sudoku

Sudoku Maker and Game

Click for information
Sudoku Maker and Game

Click for information

Free Deal or no Deal game

Software version of the popular Channel 4 game where 22 boxes contain 22 different sums of money.

Download here (1.55 mb)

Deal or no Deal

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Terms and conditions

These terms and conditions do not affect your statutory rights.

Dispatch of goods:

Goods will normally be dispatched on the day the order is received, or the first working day thereafter. Orders to UK addresses will be sent 2nd class mail. Overseas orders will be sent standard airmail.

Return of goods:

Goods found to be unsuitable may be returned to us within 15 days of purchase. A full refund, less postage costs, will be made.

If there is a problem with any software which cannot be resolved, a full refund will be made.

Privacy Policy

We at Discovery Educational Software are committed to protecting your privacy as an internet user whenever you buy, or consider buying, our software.

Bank and Credit Card details:

For on-line payments we use the services of PayPal. The only details of a transaction we receive from PayPal, are the name and delivery address, the item(s) ordered and the total amount paid. We do not have access to any card information whatsoever.

For more information visit

E-mail addresses

We do not allow any third party access to your contact details.

Site Licences

Our site licence allows you to copy the software onto a network or onto an unlimited number of free-standing machines, or to make copies on USB, all for use within the specified establishment.

It also allows teachers to install the software on home computers for use in connection with the licenced premises.

A copy of the site licence is available on request.

  Postage and Packing (number of items):

UK only £  3.00 £  3.00 £  4.00 £  6.00
Rest of Europe £  4.00 £  6.00 £  7.00 £10.00
Outside Europe £10.00 £10.00 £12.00 £15.00


How to order

Click Buy next to the chosen title. If you wish to order more than one title, click Continue shopping or use your browser's Back button.

When you have finished selecting, click Basket or Checkout.

Complete the Name and Address section and continue to the payment page (See 'How to Pay').

If you are buying a registration code for downloaded software, you must include the serial number of your software download.

If you have asked to pay by invoice, continue until your order is acknowledged.

How to pay

Payment should be made online by Paypal. If you do not have a PayPal account, you can pay as a guest using a credit or debit card.

The Invoice option is available to UK schools and nurseries only. Use the Additional Information box if you have an order number.

All other customers must pay for the goods before they are dispatched.


Sudoku Game

Sudoku Game

Play on your PC or laptop
Check correctness as you go along
Hints available when you get stuck
Or copy printed puzzles into a blank grid and solve them on screen
Can help you solve these puzzles too


Sudoku Maker>

Sudoku Maker

Generates its own puzzles
Millions of different possible puzzles
Choose from three difficulty levels
Option to print out the puzzle to solve on paper
Printable solutions also available


Deal or no Deal

          Deal or no Deal game