1. Oral and Mental Starter
Put your answers through the PRIVATE text chat!
I throw a dice and score is d. If I
> double the score and add 7, the result is 15. What is d?
I throw a dice and score is e. If I
> add 6 and then double it, the result is 18. What is e?
I throw a dice and score is f. If I
> multiply by 5 and subtract 6, the result is 4. What is f?

2. Using Algebraic Expressions: Lesson 1
By the end of this unit of work, you should be able to:
·Use letter symbols
·Simplify linear expressions by collecting like terms
·Solve simple linear equations
Keywords:
Equal (=) Expression Equation Unknown Adjacent Solve
Number Towers
You can construct tower totals like this one: 6 3 8 9 11 20
6+3
3+8
9+11

3. Complete these towers 20 16 48 40 53
100

4. 34 15 100 n n 34 15 100 Work out the second tier:
This tower uses the letter n for an unknown number 34 15
100 n
Once you know the tower total you can work out the value of n
First you form an EXPRESSION for the total using n
Work out the second tier: n 34 15
Add together the second tier:
The EXPRESSION for the total is:
100
The tower total is 100, so you can write:
Now you can solve the EQUATION:
an equation uses an equals sign (=) to link two or more EXPRESSIONS

5. Let's try this together! x 13 10 2 48
Working out:

6. Let's try this together! 2 n 3 9
Working out: