True, 2, 4, 6, 8, 10 is skip counting by 2's., 10, 20, 30, 40 is skip counting by 10's., 45, 50, 55, 60 is skip counting by 5's., False, 13, 15, 47, 19 is skip counting by 10's., 1,2,3,4 is skip counting by 2's.

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