Contents
1. Squares in a square
2. Rotated square
3. Numbers and characters
4. Óäèâèòåëüíûå öèôðû
5. The squared numbers
6. The numbers and the squares
7. The nambers are different – the result is the same
8. The magic triangle
9. The square made of stones
10. The chain of equality
11. The numerical cross
12. The largest product
13. Two co-factors
14. All ten
15. The numerical rectangle
16. The magic circles
17. Around the periphery
18. Cross number
19. Ñèììåòðè÷íûé êðîññíàìáåð
20. "Êâàäðàòíîå" êîëåñî
Main
