I. [____]
II. [____][____][____]
III. [____][____][____]-- (unde-- reprezinta 10 )
TOTAL - 871
Facem parti egale
871-10=861
Cate parti egale sint?
1+3+3=7
Cat este in prima lada?
861:7=123
Dar in a doua?
123x3= 369
Dar in a treia?
369+10=379
Verificare:
123+369+379=492+379=871