You can find the full content, including step-by-step solutions for all exercises, at the following resources:
The website provides ready-made homework solutions (GDZ) for the 6th-grade mathematics textbook authored by S.M. Nikolskii and others. spishi ru matematika 6 klass nikolskii
(addition, subtraction, multiplication, and division). Decimals and percentage calculations. Introductory Geometry concepts. You can find the full content, including step-by-step
The Nikolskii textbook is known for its focus on arithmetic, including: and their properties. You can find the full content