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Calculeaza , aplicand proprietatile inmultiri: a)2×197×5 b)50×96×2. c)25×79×4

Răspuns :

2x5=10x197=1970
50x2=100x96=9600
25x4=100x79=7900
2x197x5=1970
50x96x2=9600
25x79x4=7900