Five Steps to a Five. Oral Calculation Drill. Subtraction within 100 with Carrying Over

"Five Steps to a Five" is a new type of drill aimed at training students in mastering the addition-subtraction table. This workbook presents examples involving carrying over.
To facilitate the training process, we have separated the operations: subtraction is given separately,... addition separately.
To avoid boring the child with monotonous calculations, we have inserted playful pages after pairs of similar pages.
This workbook includes a way to assess the accuracy of calculations: coloring the clown's face. There are tasks for finding the unknown number, comparing expressions, as well as composing numerical expressions.
The last, fifth exercise, on the page is aimed at speed, so it can be used with a stopwatch.
The central control pages can be torn out in advance and used during the knowledge assessment stage after completing the entire workbook.
"Five Steps to a Five" is intended for a wide range of students from different schools working with various educational materials.