This resource on the topic of algebra substitution gets pupils working in pairs and practising substituting values into expressions. There are two game sheets, differentiated for different ability ...

Substitution means putting numbers in place of letters to calculate the value of an expression. The bracket has been worked out first. \(2 + (-8)^2 = 2 + 64\). \(-8^2\) means \(-8 \times -8\), which ...