mnozenje pomocu-prstiju

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Post on 19-Jun-2015

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2. 5. : 6, 7 . ,. 66. , . ( ). . 3. : 66= 2 + 44 =20+16=36 4. 67 5. 68 6. 69 7. 77 8. 78 9. 79 10. 88 11. 89 12. 99