1. Objective: To Write and interpret numerical expressions

2. What is this ? Algebraic Expression What is ‘n’? A variable What do I need to evaluate this expression? The value of n If n = 3, what is the value of the expression? 15

3. To Evaluate an Algebraic Expression Is to replace the variable with a number and perform the operation(s) *Simply : Find the value

4. Numerical Expression

10. Homework: Lesson 1.10 homework sheet Q 1- 5 and 8 - 12 Class work: Class work Sheet (except Question 12)