Five Steps to Five. Oral Calculation Trainer within 100 with Carrying Over a Decade. Addition with a Single-Digit Number

«Five Steps to Five» is a new type of trainer aimed at training students in mastering the addition-subtraction table of numbers. This workbook presents examples with carrying over a decade.
To ease the training process, we have separated the actions: subtraction... is given separately, and addition is given separately.
To avoid tiring the child with monotony in calculation, we have inserted game pages after pairs of similar pages.
This workbook includes a way to assess the correctness of calculations: color the clown's face.
The last, fifth task, on the page is aimed at speed, so it can be used with a stopwatch.
The central control pages can be torn out and used at the knowledge control stage after completing the entire workbook.
«Five Steps to Five» is aimed at a wide range of students from different schools working based on various educational materials.