Integer - Z, Natural Numbers - N, An example of an odd number - 13, An example of an even number - 26, What does HCF mean? - Highest common factor, What does LCM mean? - Lowest common multiple, What does > mean? - Strictly greater than , What does < mean? - Strictly less than , What's another word for greastest - Biggest, What's another word for least - Smallest , What's the HCF of 12 and 24 - 12, What's the LCM of 6 and 15 - 30, All the factors of 20 - {1,2,4,5,10,20}, Number line showing only natural numbers, Number line showing the set of numbers R, Number line, integers, 39.946 rounds to - 39.95, 39.943 rounds to - 39.94,

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