Worksheets 1.5 A. Find the sum Sn of each arithmetic sequence. 1) 2, 5, 8, ... to 12 terms 2) 3) 4) 5) 6) 7) 8) 3, 5, 7, . to 46 terms ... 3, 6, 9, ... to 32 terms 5, 8, 11,. to 23 terms -12, -6, 0, to 10 terms 12, 21, 30, ... to 41 terms 1.4, 4.5, 7.6, ... to 21 terms -11, -7, -3, to 27 terms
9) 10, -2, -14, ... to 29 terms
10) 0.5, 0.75, 1, ... to 45 terms 14


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