100, 90, 81, 73, 66, 60, 55
It's a decreasing sequence
100-10=90
90-9=81
81-8=73
73-7=66
66-6=60
60-5=55
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The next number is 48.
55
It is 21 + 34 = 55
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
The Fibonacci sequence is infinite. The next two terms are 89 and 144.