Násobení 10, 100, 1000...

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20 . 10 = 18 . 10 = 20 . 80 = 1 000 . 25 =
20 . 100 = 18 . 2 = 10 . 28 = 1 000 . 50 =
20 . 30 = 18 . 20 = 100 . 28 = 20 . 250 =
20 . 300 = 20 . 20 = 200 . 8 = 100 . 250 =
200 . 30 = 200 . 20 = 300 . 8 = 40 . 250 =
200 . 300 = 200 . 18 = 400 . 80 = 1 000 . 250 =