what is the pattern 1/3/5/7, the pattern is +2, wich is subtraction and what is subtraction, -and subtraction is not adding is making the number lower, how do we calcuate, with hand and brain and the calculater, what is adding, adding is + like we add more, what is the pattern 1/2/1/2/1/2, the pattern is +1 -1, what are patterns, patterns are adding or subtracting or multiplying or diveding in a pattern

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