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Olimpia4
a fost răspuns

afla produsele apoi verifica ,folosind operatia inversa.4×5.....8×3....6×9....7×5....8×4....9×5....9×7....8×6.....

Răspuns :

CurrerBell
4x5=20  20:5=4
8x3=24  24:3=8
6x9=54   54:9=6
7x5=35   35:5=7
8x4= 32   32:4=8
9x5=45    45:5=9
9x7=63    63:7=9
8x6=48    48:6=8