Number-Crunching Sudoku: Math + Sudoku = 2× the Fun

By James W. Liber

These 99 number-crunching puzzles are sudoku PLUS! Just like the familiar sudoku that solvers love, the grids go from 1 to 9, and each number appears only once in each row, column, and box. The twist is, you need to do a little arithmetic, too--multiplying, dividing, adding, and subtracting according to the signs in the grid. It's a fresh, challenging, and mathy take on the super-popular puzzles.

• Format: Paperback
• Language: English
• ISBN: 1454917660
• ISBN13: 9781454917663
• Release Date: March 2016
• Publisher: Puzzlewright
• Length: 128 Pages
• Weight: 0.38 lbs.
• Dimensions: 7.0" x 0.5" x 6.8"
• Age Range: 14 years and up
• Grade Range: Grade 9 and higher