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Doina cumpara 5 baloane verzi,rosii de 4 ori mai multe iar galbene  cit cele verzi si rosii la un loc.sparge 7 baloane.Cite baloane ii ramin?

Răspuns :

Cate baloane rosii are?
5x4=20
Cate baloane galbene are?
5+20=25
Cate baloane are in total?
5+20+25=50
Cate baloane ii raman?
50-7=43
5x4=20-baloane rosii
5+20=25-baloane galbene
5+20+25=50-baloane in total
50-7=43-baloane ii mai raman