: This collection is great for building speed and accuracy in both calculations and logic. It is often hosted on educational sites like 11klasov .
: A specialized resource focused entirely on word problems. It is available for download on platforms like AvidReaders or VK . skachat sbornik tekstovykh zadach po matematike 4 klass
These books are widely used because they cover all standard types of problems (motion, work, price, and logic). : This collection is great for building speed