Pre-algebra worksheet featuring algebraic expressions to evaluate for decoding a hidden message.
A pre-algebra worksheet titled "Code Line" with instructions to evaluate algebraic expressions for given variable values, each answer corresponding to a letter in a code to decode a phrase. The worksheet includes expressions like 5x + 4 if x = 3 and 7a + 3 if a = -2, with a title "Rapid Multiplication" and a code at the bottom.