Sequences Fibonacci sequence, triangular and squared

Question 1

What is a Fibonacci sequence?

Answer 1

A sequence of numbers where each number (after the first two) is the sum of the two preceding ones.

Question 2

Start the Fibonacci sequence (starting 0, 1)

Answer 2

0, 1, 1, 2, 3, 5, 8, 13, 21, 34…

Question 3

Find the next three numbers: 2, 3, 5, __, __, __

Answer 3

8, 13, 21 (Calculation: (3+5=8), (5+8=13), (8+13=21).

Question 4

What are triangular numbers?

Answer 4

Numbers that can form an equilateral triangle pattern

Question 5

List the first 5 triangular numbers.

Answer 5

1, 3, 6, 10, 15.