Printables › Number machines
Number machine puzzles for kids
A number goes into the machine, follows each step (add 3, double, take away 4) and comes out changed. Children follow the chain and write each answer, practising mental maths step by step.
Free to print for home and class, in five levels from age 4 to 10, every one with an answer key. Builds mental arithmetic and following steps in order.
Number machines for 4–5 year olds
The first machines are short chains with small numbers. Let your child act out the machine with toys going in and out.
Number machines for 6–7 year olds
Longer chains mix adding and taking away. Remind your child to write each answer before moving to the next step.
Number machines for 8–10 year olds
Longer chains with bigger numbers make these a real workout. Ask your child to invent a machine for you.
Questions parents ask
What is a number machine?
A chain of simple steps that changes a number. Children apply each step in order and write the result.
Is this the same as function machines?
Yes, it is the same idea that schools call function machines or input-output machines.
Are answers included?
Yes, every puzzle has an answer key.
Want more? Members get 5× more number machines, plus 30 new puzzles every Friday with their child’s name on them. See membership
