Open Middle®
Instrucciones: Usando los dígitos del 0 al 9, como máximo una vez cada uno, completa los recuadros para que respeten la suma de los ángulos interiores de un triángulo Origen: Ashley Henderson
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Open Middle® problems are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Open Middle® problems are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.