91¶¶Òõ

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91¶¶Òõ

Last updated

15 October 2015

docx, 117.97 KB
docx, 117.97 KB
Set out algebraically (rather than using picture puzzles). Finding solutions with limits (eg. only positive integers). Challenge questions are (implicitly) simultaneous. Used with bright Y6 group.
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DREAMINGOFSUNSHINE

11 years ago
5

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