1) 1 is a factor of: a) Only 1 b) Only 0 c) All the numbers d) None 2) 6th multiple of 9: a) 48 b) 56 c) 88 d) 54 3) 5 correct factors of 36: a) 10, 15, 20, 25, 30 b) 1, 2 , 3, 12, 18 c) 1, 8, 7, 17, 14, d) 1, 9, 32, 76, 90 4) The first four multiples of 7 are: a) 7, 9, 11, 13 b) 35, 42, 49, 56 c) 1, 2, 3, 5 d) 7, 14, 21, 28 5) The LCM, least common multiple, of 10 and 5 is: a) 18 b) 15 c) 10 d) 5 6) 18, 24 and 30 are all multiples of three. a) True b) False c) None d) All 7) Which are the first three common multiples of 6 and 4? a) 5, 16, 17 b) 12, 24, 36 c) 67, 40, 36 d) 16, 17, 20 8) Which of the following statements is/are also true?  a) 7 is a multiple of 56 b) 7 is a factor of 56 c) 10 is a factor of 56. d) None e) All of the above 9) Which equation best shows that 55 is a multiple of 11? a) 55= 44+11 b) 11×5 = 55 c) 11 ÷ 55= 5 d) 55-11=44 10) Which of the following shows only factors of 8? a) 4, 8, 12, 16, 20, 24, 28 b) 1, 2, 4, 8 c) 16,24,32,40 d) None

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