9763
/www/nrich/html/content/id/9763/
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2013-01-03T10:46:46
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<mdoxml version="1.0">If you work systematically you can be sure you won't leave out any possibilities and it's a valuable skill for tackling many problems. Have a go at these ...</mdoxml>
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Header for 9762
Header for current upper primary pupil feature working systematically