pptx, 678.67 KB
pptx, 678.67 KB
Are you a MagicTeacher? A pupil chooses 3 consecutive numbers. Another chooses a multiple of 3. The class carries out a calculation including long multiplication. The magic teacher is able to tell the class the 3 numbers and the total of the calculation. Several examples can be completed and an algebraic solution can be found.

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mic02

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