1) What are the next three numbers in the sequence: 5, 10, 15, ___, ___, ___? a) 20,25,30 b) 5,10,15 2) Write the first five terms of the sequence where each term is 3 more than the previous one, starting from 2. a) 3 6 9 12 15 b) 5 8 11 14 17 3) Which of these numbers is odd: 16, 23, 42, 86? a) 16 b) 23 c) 42 d) 86 4) List the first five multiples of 6. a) 6 12 18 24 30 b) 6 14 18 28 30 5) What is the 10th term in the pattern: 2, 5, 8, 11, ___? a) 28 b) 239 c) 29 d) 32 6) Which number is in the middle: 12, 25, 32, 40, or 18? a) 12 b) 25 c) 32 d) 40 e) 18 7) If a sequence starts at 5 and each number increases by 7, what is the 6th term? a) 40 b) 47 c) 54 8) Is 17 a prime number? a) Yes b) No 9) Is 25 a prime number? a) Yes b) No 10) What is the square root of 64? a) 7 b) 8 c) 9 11) What is the next square number in the sequence: 1, 4, 9, 16, 25? a) 36 b) 49 12) 49 a square number a) false b) true 13) What is the 5th triangular number? a) 15 b) 6 c) 10 d) 21 14) !!!: what is a perfect number (anything about 6?). a) this is nonsense b) share with the class what you think 15) 18 is a composite number a) true b) false 16) Which of the following numbers are composite? 7, 10, 11, 13, 17. a) 7 b) 10 c) 11 d) 13 e) 17 17) Is 50 is a composite or prime number. a) prime b) composite

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