A set of 70 function machine strips. Half have the starting number at the beginning followed by four operations (addition, subtraction, multiplication and division) . The other half have no starting number but the answer provided, resulting in the children having to work backwards using the inverse operations.
 
Answers also provided.
 
Aimed at Key Stage 2 and Key Stage 3 children.
 
15 pages in total - 14 pages of strips and then 1 page of answers.