Digit Matrix - Math Puzzles for Android

11 things about Digit Matrix - Math Puzzles

1. Place numbers from 1 to 2*N (N is the number of cells per side) into the cells so that there are exactly two numbers in each row, column and main diagonal.

2. Place the numbers from 1 to 9 into the cells (a different single number in each cell) so that the indicated equations are correct.

3. Place numbers from 1 to 2*N (N is the number of cells per side) into some cells so that each number is in exactly one cell, and no cell has more than one number.

4. Place numbers from 1 to 2*N (N is the number of cells per side) into some cells so that each number is in exactly one cell, and no cell has more than one number.

5. The task is to fill additional digits in required cells such that the sum of numbers in each row and each column equals to 100.

6. Select Specified quantity of numbers from a given number set.

7. (N is the total number of cells in the grid.) Every cell must contain a different number.

8. The numbers outside the grid, when given, indicate the sum of the numbers in the corresponding row, column, or diagonal.

9. Two numbers are connected by up to three line segments, and the two numbers are divided by their greatest common divisor at the same time.

10. Numbers outside the grid are the product of the two numbers in that row or column.

11. Place one coin into each cell such that the sum of the coins in each row and column matches the number to the left and the top.