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Just a quick note of appreciation. I'm using your software for a student I teach who has many learning difficulties, but he is thrilled (and motivated) to be working with your software. Please continue the excellent work, and best of luck going forward.
Ed, Canada.

We are a homeschool family and we have been using your site for nearly 10 months now...we think you're great!

Keep up the fantastic work you do!
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Sarah, New Zealand

I have been using your programs for years now and am really glad for a chance to say how FAB they are. They are better than any other I've found for educational purposes and a fraction of the price. All the kids who have used them at my school LOVE them and I think you are a very very clever man!!
Trisha , UK

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Subtraction - Everlasting Maths Worksheet

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Subtraction - worksheet producing software download
Colours and size of screenshot reduced to fit page

Suitable for UK Key Stage 1, 2, 3, 4 & 5 - USA 1st to 12th Grade (Age 5 - adult)



Recommended Minimum System: PC Windows 95/NT or better e.g. XP, Vista, Windows 7, (Mac users click here), 16MB Ram, Pentium 90, Sound Card.

Choose from 3 levels of subtraction sums from single digits to three figure problems. Each sum is randomly produced one at a time on a blackboard style interface. Audio and visual encouragement let's you know when you are right and when you need to try again. Includes the ability to demonstrate "borrow 1". There is a facility to print out personalised certificates to encourage improvement. Compressed file size - 701 KB.

Play the online version

Other Programs Of Mine In This Series Are

Addition
Multiplication
Division

For help with downloading and installing, click here

On the opening screen you will find that your mouse pointer turns into a hand over the three types of problems you can choose. Choose a type of subtraction sum that you would like to try ranging from single to three figure problems.

The Questions

Once you have clicked on your choice, a random question will appear which you have to solve by clicking on the numbers in green in the white boxes at the bottom of the blackboard. Sums in the second and third level have a green box around the column of numbers that you should solve first. They also have a Borrow One button below the sum's bottom line, which is explained below. You will be told visually and audibly whether you have got the answer correct or not. When you are able to try the next sum, the Next Sum button will become active at the bottom of the board. At anytime you can try a new level by clicking on the New Level button at the bottom.

Borrow One button

If the number at the top of a column is smaller than the one at the bottom, then it is not possible to take away one from the other. Therefore, in order to make the top number bigger you "Borrow One" from the top of the column to the left. This has the effect of adding 10 to the number at the top of the column you are working in. At the same time, you reduce the number at the top of the column to the left by one. When you click on the Borrow One button, you will see that the above is done automatically. Another method is instead of taking one from the top number of the column to the left, you can add or Pay Back one to the number at the bottom of that column to the left.

The Certificate

After a set number of correct answers, a rolled up certificate will appear on screen. You can click on this at anytime to access the certificate page and print it out. You can also move back to your level and score from the certificate page if you decide you don't wish to print one out just yet.


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Testimonials
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Thanks for the TERRIFIC software at a great price!
Suzanne, USA

I've been a happy Olltwit user for years - I downloaded several of your programs back in '04, for my older son to use. Now it's time for my younger son to use them, and I've come back to your site to find 1) I owe you, and 2) you have more great stuff. I'm happy to pay up because I know the quality of your programs.
Mary Beth, Indiana, USA

We got your DVD and its fab!

Many thanks
Lorrane, Scotland

Thank you for creating these programs.

I have ADHD like your son, Richard, and got really much help from your great educational programs.
Paal, Norway

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