Repeated Addition
* * * *
* * * *
4 + 4 = 8
5 + 5 = 10
* * * * *
* * * * *
5 + 5 = 10
* * * *
* * * *
* * * *
4 + 4 + 4 = 12
2 + 2 + 2 + 2 = 8
* *
* *
* *
* *
2 + 2 + 2 + 2 = 8
* * * * * *
* * * * * *
* * * * * *
* * * * * *
6 + 6 + 6 + 6 = 24
3 + 3 + 3 + 3 = 12
* * *
* * *
* * *
* * *
3 + 3 + 3 + 3 = 12
* * * *
* * * *
* * * *
* * * *
* * * *
4 + 4 + 4 + 4 + 4 = 20
5 + 5 + 5 = 15
* * * * *
* * * * *
* * * * *
5 + 5 + 5 = 15
* * * * * * *
* * * * * * *
* * * * * * *
7 + 7 + 7 = 21
5 + 5 + 5 + 5 + 5 = 25
* * * * *
* * * * *
* * * * *
* * * * *
* * * * *
5 + 5 + 5 + 5 + 5 = 25