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Am operația:
1x(7x7x2)+(3x4x5)=?
Rezolva!


Răspuns :

1×(49×2)+(12×5)=

1× 98+60=

158

1 × (7 × 7 × 2) + (3 × 4 × 5) =

(7 × 7 × 2) + (3 × 4 × 5) =

(49 × 2) + (12 × 5) =

98 + 60 =

158