4 Kontrolnaia Rabota Po Matematike 3 Klass 2 Chetvert Shkola Rossii -

Seryozha sat at his desk, staring at his sharpened pencil. He had spent all week practicing and division with remainders . He knew the "School of Russia" curriculum inside out, but his stomach still felt like it was doing gymnastics.

was geometry—finding the perimeter of a complex shape. He remembered the formula: P = (a + b) × 2 . He drew the rectangle neatly, his ruler clicking against the wooden desk. Seryozha sat at his desk, staring at his sharpened pencil

"Eyes on your own papers, please," Maria Ivanovna said, her voice calm but firm. She handed out the sheets. Seryozha sat at his desk