10, 12, 14, 16, 18, ______

73, 70, 67, 64, 61, ______

1, 2, 4, 8, 16, ______

a, c, f,  j,  _______

364, 374, 384, 394, _______

triangle, quadrilateral, pentagon, _________________________

For 4th and 5th graders:

1, 1, 2, 3, 5, 8, 13, 21, _________

2, 6, 18, 54, 162, _________

1, 4, 9, 16, 25, 36, _________