1. Algebraic Techniques 1 Vocabulary: algebra symbols difference
pronumeral
algebraic expression
quotient
terms
simplify
operations
like terms
product
constant
sum
unlike terms

2. What is Algebra?
Algebra is a way of using pronumerals (normally letters) to represent numbers. You are already familiar with this…
What is the size of the angle?
5 + □ = 8. What is the value which goes in the box?
Why use x?

3. Concept of a Pronumeral
A pronumeral is a letter which represents a number. The value of a pronumeral changes depending on the situation.

11. Simplifying multiplications:
Simplify these algebraic expressions.
a 5 × k
b k × 5
c k × m
d k × k
e 5 × k × m
f 3 × q + 1
g 5 × m − 7 × n
h n × m

14. Simplifying Divisions:

17. Using grouping symbols
We can leave out the multiplication sign between a numeral and a grouping symbol, or between a pronumeral and a grouping symbol.

19. Adding and Subtracting Terms
Only terms with exactly the same pronumeral part can be added or subtracted.

22. Writing expressions