# LOGIC PUZZLES FOR KIDS

## NUMBER CROSS MULTIPLICATION (5X5)

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With the **Number Cross Multiplication** you can improve you knowledge of the times tables.
You get a grid full of digits. Outside the grid at the top and left there are also numbers.

You now have to delete digits in the grid (= a cross appears) so that the multiplication of the remaining digits corresponds to the number at the top and left outside the grid.

By clicking twice on a gray box in the grid, it will turn WHITE. This means that you need this digit.

So to solve a number cross puzzle:

- The cells you need must become WHITE
- The cells you don't need must have a CROSS

When you click on a number outside the grid, then the background becomes WHITE.
You can use this to indicate that you have found the digits for that number.

Follow the steps below to solve a number cross puzzle from our database.

- LEV: choose your starting level. The number of puzzles is in parentheses.
- PUZZLE: enter the number of the puzzle you want to solve.
- START: this puzzle is now loaded and ready to be solved.
- Click on a GRAY cell to cross out. A CROSS appears.
- Click on a cell with a cross to change it into a WHITE cell. You need this digit to make the number in the border.
- Click on a WHITE to make a neutral again.
- Click on ✓ to check the puzzle. The wrong cells turn RED.
- Click on SOL to show the solution of the number cross puzzle.