All three series of numbers written in ascending order. Check each set of numbers. \r\n\r\Pervyy Bank 1) 1,2,4,6,8,11,12,14. 1 and 2, the number increased by 1, 2, and 4 on 2, 4 and 6 - 2, 6 and 8 on 2, 8 and 11 - 3, 11, and 12 to 1. The numbers grow unevenly or the difference between adjacent numbers are not the same.\r\n\r\vtoroy Bank 2) 1,5,9,13,17,21,25. 1 and 5, the difference is equal to 4, 9 and 5 - 4, 13, and 9 - 4, 17 and 13 4, 21 and 17 4, 25, and 21 - 4. The difference between all adjacent numbers equal 4, the constant.\r\n\r\ptrety number 3) 1,3,5,7,9,11,13,15. 1 and 3, the difference is equal to 2, 5 and 3 - 2, 7 and 5 - 2, 9, and 7 - 2, 11, and 9 - 2, 13, and 11 - 2, 15, and 13 - 2. \r\n\r\petot a number similar to the second, here each successive number is greater than the previous by 2.\r\n\r\psychic excess, we assume the first row. Such examples need for first graders to learn to find patterns.

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