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GeoGebraGeoGebra Classroom

GeoGebraMindReader

Choose any 2 digit number. Add together both digits and then subtract the total from your original number. When you have the final number look it up on the table and find the relevant symbol. Concentrate on the symbol and when you have it clearly in your mind click on the show your symbol button and it will show you the symbol you are thinking of…

GeoGebra Mind Reader Instruction