1) 17, 21, _____, 29, 33. What is the missing number? a) 4 b) 24 c) 25 d) 20 2) 50, 80, 110, 140, 170. The number pattern is ________ a) increases by 3 b) increases by 30 c) decreases by 3 d) decreases by 30 3) 53, 47, 41, 35, _____, ______. Find out the missing numbers. a) 29, 22 b) 29, 23 c) 28, 22 d) 28, 23 4) 64, 57, 50, 43, 36. The number pattern is _______ a) increases by 7 b) increases by 17 c) decreases by 7 d) decreases by 17 5) 9457, 9461, 9465, 9469. What is the number pattern for this numbers? a) increases by 3 b) increases by 4 c) increases by 5 d) increases by 6 6) 34 320, 24 320, 14 320, 4320. What is the number pattern for this numbers? a) increases by ten thousands b) increases by thousands c) decreases by ten thousands d) decreases by thousands 7) 70 110, _______________, 70 010, 69 960, 69 910. Find the missing numbers. a) 70 060 b) 70 050  c) 70 040 d) 70 350

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