English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

i need to know the answer to this problem
Fill in the blanks:
1, 1, 2, 3, 5, 8, 13, __, __

thanks in advance!,
taylor

2007-10-29 09:57:40 · 6 answers · asked by Anonymous in Science & Mathematics Mathematics

6 answers

Just add the two numbers before to get the next number:
1 + 1 = 2
1 + 2 = 3
2 + 3 = 5
3 + 5 = 8
5 + 8 = 13
8 + 13 = 21
13 + 21 = 34
etc.

2007-10-29 10:01:11 · answer #1 · answered by Puzzling 7 · 2 0

You add the last two to get the next answer 1+1 =2, 1+2=3, 2+3=5, etc. so 21 and 34 would be right.

2007-10-29 10:02:20 · answer #2 · answered by Delirious Dessert 5 · 0 0

Fibonacci is the pattern for rabbit mating.
How many ever there where in the last two generations will make up the current generation. Or so the story goes.

2007-10-29 10:02:25 · answer #3 · answered by Brent 2 · 0 0

Each element in a Fibonacci series is the sum of the two preceding elements. Look at what you have so far:
1,1 adds to 2
1,2 adds to 3
2,3 adds to 5
etc.
Looks like F to me. Now you can figure out the next two in the series.

2007-10-29 10:02:59 · answer #4 · answered by DWRead 7 · 0 0

add the two before
so 8+13= 21
and 21+13= 34

2007-10-29 10:02:22 · answer #5 · answered by Hassoun 2 · 0 0

21,34. Each number is the sum of the previous two.

2007-10-29 10:03:39 · answer #6 · answered by steiner1745 7 · 0 0

fedest.com, questions and answers