Number sequences (Tricky)

Kept on this device

Number sequences (Tricky)

Name:
Date:

Find the next number in each sequence.

1.5, 10, 15, 25, 40, ?
2.3, 6, 10, 15, 21, ?
3.16, 25, 36, 49, 64, ?
4.9, 35, 14, 31, 19, 27, ?
5.1, 4, 9, 16, 25, ?
6.1, 4, 5, 9, 14, ?
7.24, 38, 52, 66, 80, ?
8.3, 9, 27, 81, 243, ?
9.10, 15, 21, 28, 36, ?
10.25, 36, 49, 64, 81, ?
11.30, 32, 34, 36, 38, ?
12.107, 92, 77, 62, 47, ?
13.5, 10, 20, 40, 80, ?
14.12, 27, 42, 57, 72, ?
15.7, 33, 8, 30, 9, 27, ?
crayonbird.com