4th Grade Logic Puzzles: CalcuDoku Puzzles - Best Logic Puzzle Collection for Kids (Logic Puzzles for Kids)

CalcuDoku is a mathematical and logical puzzle loosely similar to Sudoku. It was invented by a Japanese mathematics teacher Tetsuya Miyamoto. The objective is to fill the grid in with the digits 1 through N (where N is the number of rows or columns in the grid) such that: - Each row contains exactly one of each digit. - Each column contains exactly one of each digit. - Each bold-outlined group of cells (block) contains digits which achieve the specified result using the specified mathematical operation: addition (+), subtraction (-), multiplication (×), and division (÷). - Unlike Killer Sudoku, digits may repeat within a block.

• | Author: Ted Warner
• | Publisher: Independently published
• | Publication Date: May 11, 2018
• | Number of Pages: 115 pages
• | Language: English
• | Binding: Paperback
• | ISBN-10: 1981074287
• | ISBN-13: 9781981074280