What Comes Next? 12 In 53 Out

What do you notice? What do you wonder? What comes next?

3 function machines. First, input 12. Multiply by blank. Add blank. Output 53. Next, input 14. Multiply by blank. Add blank. Output 61. Last, input 16. Multiply by blank. Add blank. Output 69.

Show or tell what the next few pictures would look like. Describe how you know.

Challenge

If the output number is 125, what is the input number?

Follow-up

Create your own function machine and share it with someone. Ask them what comes next!

Printable Version

Reference for Educators