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# Let's Face It

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Age 7 to 11

Challenge Level

- Problem
- Getting Started
- Student Solutions
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In this problem, you will probably find it helps to do the solution practically. A good way to do this is to draw the net of a cube and to mark a $4$ by $4$ square on each face. Then fill in the numbers for the magic square on one face.

1 | 8 | 12 | 13 |

15 | 10 | 6 | 3 |

14 | 11 | 7 | 2 |

4 | 5 | 9 | 16 |

After that you need to work your way over the net, putting a variation of the magic square on each face, and making the numbers coming on the edges of the cube correspond. Then you can make your net into a cube. We'll leave that to you!

This solution to the problem was sent in by Joel of ACS Independent, Singapore.

Here you have the net of a cube with a magic square on each face.

13 |
2 |
3 |
16 |
||||||||

11 |
8 |
5 |
10 |
||||||||

6 |
9 |
12 |
7 |
||||||||

4 |
15 |
14 |
1 |
||||||||

13 |
11 |
6 |
4 |
4 |
15 |
14 |
1 |
1 |
7 |
10 |
16 |

8 |
2 |
15 |
9 |
9 |
6 |
7 |
12 |
12 |
14 |
3 |
5 |

12 |
14 |
3 |
5 |
5 |
10 |
11 |
8 |
8 |
2 |
15 |
9 |

1 |
7 |
10 |
16 |
16 |
3 |
2 |
13 |
13 |
11 |
6 |
4 |

16 |
3 |
2 |
13 |
||||||||

10 |
5 |
8 |
11 |
||||||||

7 |
12 |
9 |
6 |
||||||||

1 |
14 |
15 |
4 |
||||||||

1 |
14 |
15 |
4 |
||||||||

12 |
7 |
6 |
9 |
||||||||

8 |
11 |
10 |
5 |
||||||||

13 |
2 |
3 |
16 |