'Written addition and subtraction' tutor notes
This module can be used as a starting point for: learning different methods of written addition and subtraction.
Please let us know what you think of the factsheets, worksheets, quiz and games at skillswise.feedback@bbc.co.uk
How does this tie in with the new curriculums?
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England
N1/L1.3 - Add, subtract, multiply and divide using efficient written methods.
N1/L1.8 - Approximate by rounding.
N1/L1.9 - Estimate answers to calculations.
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Wales
As England.
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Northern Ireland
As England.
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Scotland
See www.aloscotland.com for details of the Scottish curriculum.
In the Skillswise module you'll find:
Written addition and subtraction factsheets
There are ten sheets in this section which can be printed out and kept.
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Factsheet 1 - Some reminders about addition and subtraction.
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Factsheet 2 - Checking the sum before and after.
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Factsheet 3 - Traditional addition.
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Factsheet 4 - Addition by splitting.
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Factsheet 5 - Traditional subtraction - borrowing.
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Factsheet 6 - Traditional subtraction - decomposition.
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Factsheet 7 - Subtraction by splitting.
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Factsheet 8 - Subtraction using complementary addition.
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Factsheet 9 - Addition Glossary.
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Factsheet 10 - Subtraction Glossary.
The Amoeba Addition and Subtraction Games
In these games the learner can practise the 'splitting numbers' methods shown in the factsheets.
There are two games: one for addition and another for subtraction.
Learners fill gaps by typing in. At each stage they are shown where they went wrong and get a second try. At the end of the game they are given a summary of how they got on in each section and an overall score.
If they get 75% or more, they get a bonus game - 'Shoot the Amoebas'
TOP TIP! To see the game completely full screen, press the F11 key on the keyboard. This takes away the distraction of the top browser bar. To bring the browser bar back, just press F11 again!
Written addition and subtraction quiz
The learner can choose their level. Level A is the easiest, level C the hardest.
Students can print out a certificate if they score 50% or more in the quiz. This will appear as a link on the results page - click on the link and the certificate will appear in a new window. Once printed students can write their name on the certificate.
Written addition and subtraction worksheets
There are six printable worksheets in this section for learners to carry on the work done online.
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Worksheet 1 - Some questions to practise written addition using different methods. There are examples and separate answersheets covering each of the written methods.
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Worksheet 2 - Some questions to practise written subtraction using different methods.
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Worksheet 3 - Addition puzzle 1.
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Worksheet 4 - Addition puzzle 2.
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Worksheet 5 - Subtraction puzzle 1.
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Worksheet 6 - Subtraction puzzle 2.
Technical help:
To get the most out of this topic area you need the following 'plug-ins':
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Flash
The game in this topic section uses Flash. This is free to download and should only take a few minutes. You can follow the BBC WebWise instructions to download it to your machine.
Find out more.
If you don't have Flash the same learning points are covered in the quiz and in the worksheets and factsheets.
If you are new to the web, why not try the BBC WebWise online course, Becoming WebWise? It's free, you can do it in your own time from any computer and it will take you through everything you need to know to use the web successfully in your teaching.
Get WebWise.
You can find out more about the technical requirements for Skillswise in our Help - Technical Information section.
Taking it further:
Here are a few suggestions of other places on the web where you might find useful resources that you can adapt for teaching written addition and subtraction.
Please note that the BBC is not responsible for the content of other websites.
Do you know of any great online resources for practising written addition and subtraction? Tell us about them!
Don't forget to visit Lesson plans and Teaching inspirations for more ideas for teaching writing addition and subtraction.
