Function Machines

A Function Machine is a machine that if you put one number into it comes out as a different number.

So it may have had a number

added or taken away from it

or it may have been multiplied or divided.

If I put the number 21 into a Function Machine and it came out as the number 7, then what has happened to it? It has been divided by 3!!

If the number 3 went into a function machine and came out as the number 30, what has happened? It has been multiplied by 10!!

Questions

For these questions you need to work out what has happened to the number that went into the Function Machine. Answer the questions in the comments section below.

Easy Questions

Q1. If the number that goes in is the number 11 and the number that comes out is the number 33 what has happened to the number?

Q2. If the number that goes in is the number 20 and the number that comes out is the number 5 what has happened to the number?

If you get confused by Function Machines these are the questions to try.

Medium Questions

If you get Function Machines but need a bit more practise, then these are the questions to try.

Q1. If the number that goes in is the number 5 and the number that comes out is 11 what has happened to the number?

Q2. If the number that goes in is the number 100 and the number that comes out is the number 5 what has happened to the number?

Hard Questions

If you get Function machines then these are the questions for you.

Q1. If the number that goes in is the number 10 and the number that comes out is the number 146, what has happened to the number?

Q2. If the number that goes in is the number 12 and the number that comes out is the number 297 what has happened to the number?

I hope that this has helped you.