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Authors
Subjects
Numeration--Study and teaching.
Addition--Study and teaching (Elementary).
Subtraction--Study and teaching (Elementary).
Mathematics--Study and teaching (Elementary).
Mathematics--Problems, exercises, etc.
Blocks (Toys) in mathematics education.
Children's literature in mathematics education.
Arithmetic--Study and teaching (Primary).
Addition--Study and teaching (Elementary).
Subtraction--Study and teaching (Elementary).
Mathematics--Study and teaching (Elementary).
Mathematics--Problems, exercises, etc.
Blocks (Toys) in mathematics education.
Children's literature in mathematics education.
Arithmetic--Study and teaching (Primary).
Language
English