15, 22, 29, 36, 43, ____                       1, 2, 4, 7, 11, 16, _____

54, 51, 48, 45, 42, ____                       a, b, d, g, k, p, _____

80, 40, 20, 10, _____                           3, 6, 12, 24, 48, _____


For 4th and 5th graders:

1, 4, 9, 16, 25, 36, _____

1, 1, 2, 3, 5, 8, 13, 21, 34, _____

64, 32, 16, 8, 4, 2, 1, _____