The book "Crossword Puzzles – I'm Learning to Calculate (2nd Grade)" offers an entertaining and educational way for second graders to improve their math skills. With 40 varied crossword puzzles, children aged 7 and up can playfully practice basic arithmetic operations such as addition, subtraction, multiplication, and division. The puzzles are specifically designed to meet the needs and learning levels of second graders, promoting not only calculation skills but also number writing. The content aligns with the 2nd grade curriculum and has been developed by experienced elementary educators. This allows children to learn joyfully and with motivation both at home and on the go. The simple self-checking feature with solutions on the back of the puzzles supports independent learning and boosts the confidence of young learners.