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- Whole numbers subtraction: 0 to 99
- Hui, T. L.
- Ensino Fundamental Final::Matemática
- The educational object is a simulation/animation that allows determining the difference of two natural numbers from 0 to 99
- XP Math
- Educação Básica::Ensino Fundamental Final::Matemática::Operações
- Natural number
- Helping the user in the study of subtraction of the natural numbers
- The object is under the Creative Commons 3.0 (CC BY -NC -ND 3.0) license, which allows its copying, distributing, broadcasting and adapting. The author’s attribution is required. Altering, transforming or creating something out of it is strictly forbidden. Commercial use is not allowed
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