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6 x 5 = 5 x 5 + 5
= 25.
25 +
I
6 x 5 = .
7 x 5 = 6 x 5 + 5
+
8x5=7 x 5 +
7 x 5 =
II III
8 x 5 =
9 x 5 = 8 x+
10 x 5 =
+
Х
+
+
9x 5 =
II II II
10 x 5 =​