12. The numbers below are known as Fibonacci numbers. What is the pattern? Give the next three numbers in the sequence. 1,1,2,3,5,8.

You start from 1 and add the last two numbers in the sequence, and continue.

Therefore, to start, you'd do 1 + 0 = 1.

This gives you a sequence of 1, 1, ...

Similarly, you do 1 + 1 = 2.

That's a sequence of 1, 1, 2, ... now.

And you keep repeating:

1 + 2 = 3 (1, 1, 2, 3, ...)

2 + 3 = 5 (1, 1, 2, 3, 5, ...)

3 + 5 = 8 (1, 1, 2, 3, 5, 8, ...)

Therefore, the next three numbers would follow this pattern:

8 + 5 = 13 (1, 1, 2, 3, 5, 8, 13, ...)

13 + 8 = 21 (1, 1, 2, 3, 5, 8, 13, 21, ...)

21 + 13 = 34 (1, 1, 2, 3, 5, 8, 13, 21, 34, ...)