Răspuns :
7×3=7+7+7=21
6×10=6+6+6+6+6+6+6+6+6+6=60
5×8=5×5×5×5×5×5×5×5=40
9×2=9+9=18
buna ! ^_^
7 x 3 = 7+7+7 = 21
6 x 10 = 6+ 6+ 6+ 6+ 6+ 6+ 6+ 6+ 6+ 6= 60
5 x 8 = 5+ 5+ 5+ 5+ 5+ 5+ 5+ 5 = 40
9 x 2 = 9+ 9 = 18
7 x 3 = 7+7+7 = 21
6 x 10 = 6+ 6+ 6+ 6+ 6+ 6+ 6+ 6+ 6+ 6= 60
5 x 8 = 5+ 5+ 5+ 5+ 5+ 5+ 5+ 5 = 40
9 x 2 = 9+ 9 = 18