21. Add the last 2 numbers to get the next.
This is the Fibonacci sequence where each new number is the sum of the last two numbers. So the next numbers are: 8 + 13 = 21 13 + 21 = 34 21 + 34 = 55 34 + 55 = 89 55 + 89 = 144
Answer = 21 The next number is the previous 2 numbers added together
55 and 89
oops, space in the wrong place! Should end 13 21. Next numbers 34 and 55
21. Add the last 2 numbers to get the next.
This is the Fibonacci sequence where each new number is the sum of the last two numbers. So the next numbers are: 8 + 13 = 21 13 + 21 = 34 21 + 34 = 55 34 + 55 = 89 55 + 89 = 144
Answer = 21 The next number is the previous 2 numbers added together
13, 21 - it is the Fibonacci sequence
Since this appears to be the start of the Fibonacci sequence, the next number would be 21, which is found by adding the two previous numbers (8 + 13 = 21).
These are Fibannoci's numbers. Therefore, the 7th number is 21.
55 and 89
oops, space in the wrong place! Should end 13 21. Next numbers 34 and 55
what are the next numbers in the pattern 1, 2, 3, 5, 8, 13,_,_
This is called the Fibonacci sequence. The last two numbers in the sequence are added together to produce the next. Therefore, following 8 and 13 are: 8 + 13 = 21 13 + 21 = 34 21 + 34 = 55 34 + 55 = 89 55 + 89 = 144
13 10 17 15 21 13 - 10 = -3 10 - 17 = +7 17 - 15 = -2 15 - 21 = +6 The negative numbers alternate with the positive numbers The negative numbers are augmented by +1 each step The positive numbers are diminished by -1 each sterp So the next step from 21 is a negative and should be -2 increased by +1 to -1 giving a new value of 20 Then the next step is a positive and should be +6 decreased by -1 to +5 giving 25 13 - 10 = -3 10 - 17 = +7 17 - 15 = -2 15 - 21 = +6 21 - 20 = -1 20 - 25 = +5
21. This is the Fibonacci series.