52 problemas sencillos para iniciarse en la resolución de problemas, orales o por escrito. - Comienzan desde situaciones por debajo de la decena. - Progresiva dificultad, trabajando decena a decenta. - Combina de forma aleatoria sumas y restas - Trabajo sistemático, con enunciados similares, para un entrenamiento específico en la resolución de problemas.
52 simple problems to start practicing problem-solving, orally or in writing. They begin with situations below ten.Progressive difficulty, working from one ten to the next.Randomly combines additions and subtractions.Systematic work, with similar statements, for specific training in problem-solving.
1st - 2nd
Math
$1.50
Original Price $1.50
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