: Calculating the area and perimeter of rectangles, often involving multi-step comparisons (e.g., "length is 2 times greater than width").
: Solving complex expressions with multiple steps, including those with parentheses, multiplication, and division. kontrolnaja po matematike 4klass 2 chetvert po nefjodovoj
: Performing addition and subtraction with numbers up to 1,000,000, often requiring column-based calculation (long addition/subtraction). : Calculating the area and perimeter of rectangles,