Number sequences sometimes use rules to generate the next number.
Here is a simple rule:
If the number is even, divide it by 2.
If the number is odd, subtract 1 from it.
Stop when you get to the number 1.
Look at this number worm, which shows this rule starting at the number 60.
That's quite a worm! Did you see how it follows the rule all the way from 60 to 1?
Let's have a go at some more number worms now.
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