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calculeaza dupa modelu dat

Calculeaza Dupa Modelu Dat class=

Răspuns :

a) 8×3=7×3+3
=21+3=24


3×6=2×6+6
=12+6=18


8×9=7×9+9
=63+9=72



b) 6×5=5×5+5
=25+5=30



6×7=5×7+7
=35+7=42


7×4=6×4+4
=24+4=28