Calculeaza de cate ori se repeta 6 in fiecare ex
1×6+2×6+3×6=□×6
9×6+1×6=□□×6
100×6-1×6=□□×6


Răspuns :

1×6+2×6+3×6=6×6=36
9×6+1×6=10×6=60
100×6-1×6=99×6=594
1 x 6 + 2 x 6 + 3 x 6 = 6 x 6

9 x 6 + 1 x 6 = 10 x 6

100 x 6 - 1 x 6 = 99 x 6


==> Succes!