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Icon Function Machine Problems

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The function machines to be completed on this worksheet operate using the terms 'minus 7', 'subtract11' and 'take away 9'. One robot has the rule missing and this needs to be determined by looking at the input and output numbers. The worksheet is excellent for reinforcing logical thinking and understanding of numerical relationships. All the calculations are within 30.

An answer sheet is provided.
AGE
6-8 Years
CATEGORIES
Subtraction
LEARNING OBJECTIVES
Recognise and use the inverse relationship between addition and subtraction and use this to check calculations and solve missing number problems.