: Confirm if it is Moro (Моро) , Petersen (Петерсон) , or Istomina (Истомина) . Textbook Part : Specify if it is Part 1 or Part 2 .
: Comparison of multi-digit numbers or calculation of expressions with brackets. Example :
If your textbook is indeed by a different author or if these tasks don't match, please check for the following: