1) Extend the pattern 4, 8, 12, 16, ......., .......... a) 20, 24 b) 18, 20 c) 17,18 d) 18, 19 2) ........... , 10, 15, 20, ......... . The two blanks area can be filled by a) 4 and 8 b) 5 and 25 c) 10 and 100 d) 10 and 20 3) 3, 6, ..... , 12, ......, 18 . The two blanks area can be filled by a) 6 and 7 b) 9 and 10 c) 9 and 15 d) 12 and 15 4) Extend the pattern 6, 12, 18, ......., ...... a) 6, 18 b) 24, 30 c) 15, 21 d) 21, 24 5) 3, 5, 7, 9. The rule of this pattern is.... a) added by 3 b) added by 2 c) subtracted by 3 d) subtracted by 2 6) 20, 18, 16, 14. The rule of this pattern is... a) subtracted by 4 b) subtracted by 3 c) added by 3 d) subtracted by 2 7) 100, 200, 300. The rule of this pattern is... a) subtracted by 100 b) subtracted by 1000 c) added by 100 d) added by 1000 8) 30, 25, 20, 15. The rule of this pattern is a) + 5 b) -5 c) +10 d) -10 9) 22, 42, 62, 82. The rule of this pattern is..... a) +20 b) -20 c) +10 d) -10 10) 1, 2, 4, 8, 16. The rule of this pattern is..... a) added by 2 b) multiply by 2 c) divide by 2 d) subtracted by 2

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