Diagonal Sudoku

Start with a 6 by 6 sheet such as Greater Than Sudoku, then move to the 9 by 9 grids. Use the sheets with equation and expression clues when students need practice with integers and two step equations.

Solve a 9 by 9 sudoku in which both long diagonals also hold the digits 1 to 9 once each. The directions on the page read: Fill the grid so every row, column, and 3 by 3 box has the digits 1 to 9 exactly once. The two long diagonals must also have the digits 1 to 9 exactly once. An answer key is included.

Yes, both. We made it for 7th grade math puzzles, and it works the same at home or at school. At home, a student can work through it alone and then go over it with you, which shows quickly what is solid and what needs another look. In class it works as independent practice, homework or a warm-up, and you can print one copy or a full set.

A sudoku variant uses the usual rule that each row, column and box holds each value once, then adds an extra clue. The clue might be shading for even and odd digits, cage sums, diagonals or marks between cells.

Signed Digit Sudoku uses the integers from negative 4 to 4, and Cage Arithmetic Grid With Negatives adds and multiplies negative integers. Fraction Value Sudoku treats fractions as decimals, and Two-Step Equation Sudoku Clues has students solve equations such as 9x minus 6 equals 21.

Some sheets use a 9 by 9 grid with 3 by 3 boxes. Others use a 6 by 6 grid with 2 by 3 boxes, which is a gentler start.

Yes. All 11 sheets have an answer key with the completed grid.