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The manual is based on the requirements of the Model Educational Programmes in Mathematics for pupils in grades 1 and 2. It contains a variety of tasks aimed at developing quick computational skills, mathematical thinking, memory, and is a supportive basis for learning mathematical terminology.

The main purpose of the manual is to help the teacher select material for organising work on the formation and consolidation of oral calculation skills.

The main purpose of oral calculations is to form the skills of quick counting, as well as to develop students' intelligence, mathematical ingenuity, attention, strengthening memory.

The manual contains:

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• Mathematical dictations of different types;
Graphic dictations;
• Graphic dictations
• didactic games.

The proposed tasks will help to form and consolidate oral calculation skills on the basic topics of the mathematics programme.

The tasks of the manual are collected according to the basic topics of the programme:

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• Addition and subtraction within 10.
Addition and subtraction within 20.Adding and subtracting two-digit numbers without going past the decimal point. Tabular multiplication and division.

The materials of the manual can be used in mathematics lessons to explain and consolidate the material studied, control knowledge, additional classes with individual students, as well as during classes at home to improve oral calculations.