Stage: 2 Challenge Level: 
Can you substitute numbers for the letters in these equations?
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Did you know? Mathematical problems in which you replace digits with letters that make words or even phrases are called CRYPTARITHMS.
Interactivities. Working systematically. Using symbols. Multiplication & division. Combinations. Trial and improvement. Addition & subtraction. Visualising. Investigations. Place value.
Published September 2001.
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