The simulator in an oral account is within 100. Grade 2. Subtraction with the transition through a dozen. Fedoskina O.

The braid-lane is designed to train the skills of an oral account and helps to master subtracting within 100 with the transition through a dozen.

The simulator includes 4 topics and a section of warm-ups with tasks to update the necessary knowledge and skills. For the convenience of students in each topic, specific computing deducting techniques are worked out, various methods are considered in detail. Many tasks include a game component, tips for self -testing.

Each topic ends with a task for the account speed, which is performed with a stopwatch, the results are checked by answers on a special page at the end of the notebook. Also, the children are proposed to each topic for self -testing of their successes that it is convenient to get out of the notebook in advance and use at the discretion.

The manual will allow parents and teachers to determine the degree of development of the material for the child, identify gaps and organize the work to eliminate difficulties and consolidation of the material.

The publication is suitable for classes in various curricula of schools and is addressed to students of grades 2 and 3, their parents, teachers.