Како напамет множити велике бројеве? Пробајте овако:
https://scontent-b-vie.xx.fbcdn.net/hphotos-xpa1/v/t1.0-9/s526x395/10492078_10203213737560025_7487359000982946351_n.jpg?oh=7a34f955d3b3356feb117c3aefe78f50&oe=5537B793
Множење бројем 11
https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-xap1/v/t1.0-9/p526x296/10845971_10203213752560400_3802982747895879227_n.jpg?oh=e65b1b17b8c89ca941bb6d3f9881f62e&oe=55004CED&__gda__=1430752598_b1bbdb7eafb818e9ed7afb5bab2079d7
Metoda leptir za sabiranje i oduzimanje razlomaka
https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-xfp1/v/t1.0-9/10369212_10203213718839557_4472282241402389503_n.jpg?oh=9a864dd120df034417cfa975bcd8fa66&oe=5503952A&__gda__=1430588495_4bb155b5339f864e978e371b00a13b1d
