bjr
25 x 10 = 250
donc
25 x 11 = 25 x 10 + 25 x 1 = 250 + 25 = 275
25 x 12 = 25 x 10 + 25 x 2 = 250 + 50 = 300
etc
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bjr
25 x 10 = 250
donc
25 x 11 = 25 x 10 + 25 x 1 = 250 + 25 = 275
25 x 12 = 25 x 10 + 25 x 2 = 250 + 50 = 300
etc