Collection of arithmetic problems. Part 4. 1941 year

Soviet textbooks were distinguished by a clearly built structure, clarity of presentation, competent, serious selection of examples, depth of tasks. Exercises for independent execution by schoolchildren were carefully thought out, developed observation and logical thinking. This edition is an original text compiled by famous scientists, teaching teachers Natalya Popova and Alexander Pchelko. The manual contains many diverse simple and complex tasks on different topics: oral and written numbering of integers of any size, addition, subtraction, multiplication and division of multi -digit numbers, actions with composite numbers, time measures, geometric material, transformation, addition and subtraction fractions, calculating the number of this part of it, percentage calculations. The textbook is ideal for consolidating the material covered