X Stäng
Tangentbord:
Arabiskt
Persiskt
Ryskt
Åk 6–9
Start
1. Welcome to Patterns and Proportionalitys
2. Figures, expressions, and Proportionalitys
3. Number Sequences and Series
3.1 Numbers Sequences
3.2 The Fibonacci Sequence
3.3 Pascal’s Triangle
3.4 The Sum of Sequences
3.5 Exercises
4. Rule of Three
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