On the left page of this book you see four numbers. Use these numbers and the buttons for +, -, : and x, to make the number on the other page. If you can find the right solution, you will see for yourself why this is a magic book.
- You can use each of the four numbers only once, but you have to use them all.
- The outcome of an addition, subtraction, division or multiplication can be used in the next sum. You always have to write three sums.
- If you find a problem too hard, just try another one. Go to the next page by clicking on the corner of the page.
Get the given number in the book of magic!