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(3+2)ori 8    :  (7-5)ori 8 aflati produsele in 2 moduri


Răspuns :

(3+2)x8:(7-5)x8=5x8:2x8=40:16=2,5
(3+2)x8=5x8=40
3x8+2x8=24+16=40
(7-5)x8=2x8=16
7x8-5x8=56-40=16