Arithmetic textbook for elementary school. Part I. 1933 year

Textbooks compiled by a famous Soviet methodist teacher, Associate Professor Natalya Popova are considered reference to studying arithmetic in elementary grades. They are distinguished by a strict sequence, a clear structure, accuracy in the presentation of information, perfectly adapted for children to understand primary school age. This publication is the original text of 1933.
The textbook introduces the first ten and the first hundred, and offers the following tasks: the account and recording of numbers, addition and subtraction without transition and with the transition through a dozen, weighing, a liter measurement, a straight line and a curve of the line, addition, subtraction, multiplication and Division of round dozen, measurement by a decimeter and centimeter, tasks for a while, addition and subtraction without transition through a dozen