Mental Calculation Files
Added 29.09.11
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Various arithmagon worksheets including decimal and algebraic
Added 17.01.16
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A task focused on addition of directed numbers based on the format developed by Whit McMahan
Added 29.09.11
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Using made up units to enhance understanding
Added 27.07.11
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A matching pairs activity
Added 01.09.11
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An excel sheet with lots of puzzles and interaction
Added 01.09.11
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Investigate the relationship between three variables and the grid
Added 25.08.11
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A simple magic squares activity for younger pupils