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560:16=35
720:18=40
540:12=45
PS też mam tą książkę do matmy :)
560 : 16 = 56 : 16 * 10 = 3,5 * 10 = 35
720 : 18 = 72 : 18 * 10 = 4 * 10 = 40
540 : 12 = 54 : 12 * 10 = 4,5 * 10 = 45