noun. ['ˈrɛkənɪŋ, ˈrɛknɪŋ'] problem solving that involves numbers or quantities.
noun. ['ˈrɛkənɪŋ, ˈrɛknɪŋ'] the act of counting; reciting numbers in ascending order.
noun. ['ˈrɛkənɪŋ, ˈrɛknɪŋ'] a bill for an amount due.