Åk 6–9
 
English/Polski
3.5 Exercises – Sequences and Series
1. Complete the sequences with the numbers that are missing.
a) 30 40 50 70 80
b) 10 15 20 25 30
c) 12 17 22 27 32
d) 23 21 19 17 15
e) 1 5 9 17 21
f) 28 22 19 16 13
g) -1 2 5 8 11
h) 4 -1 -6 -11 -16