These activities are a great tool for giving students the opportunity to use their addition and subtraction skills, while having fun solving the code! There are four differentiated addition worksheets and four differentiated subtraction worksheets.
Teachers can issue the same worksheet to the whole class and increase in difficulty over the course of a teaching unit, or they can distribute different sheets to streamed groups, according to skill levels.
Early finishers can complete the bottom task of creating their own coded number sentences for a peer to solve.
Answers are included for ease of marking.
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