: Tasks involving finding a total from different groups or calculating remaining quantities after several actions (e.g., "A shop received 14kg of cucumbers and 28kg of tomatoes; 24kg were sold. How much is left?").
: Solving equations with one unknown (
: Understanding the multiplication table (up to 100), division with remainders, and properties of operations like multiplying a sum by a number. zadachi dlia kontrolnykh po matematike 3-i klass
) of rectangles and squares, and drawing multi-segment broken lines. : Tasks involving finding a total from different