Evaluating Expressions Code Breaker (Substitution)

The Evaluating Expressions Code Breaker (Substitution) offers students an engaging way to practise substituting values into algebraic expressions. In this activity, students evaluate each expression using substitution and the order of operations, then use a key to match their answers to corresponding letters, which they unscramble to reveal a hidden word.
 
The interactive puzzle format reinforces accuracy and fluency with substitution while keeping students motivated and focused. It promotes critical thinking, builds confidence with integers and negative numbers, and makes practising algebraic skills both fun and memorable.