1. 3rd Year Starter Questions
Q1. Calculate
Q2. If 1 bar of chocolate costs 45p. How much will
100 bars cost. Give your answer in £’s.
Q3. Find the order of rotation of the letter
St. Andrew’s Secondary
Q4. Find
24 February, 2019
Created by Mr. Lafferty Maths Dept.

2. Aim of the Lesson How to work out simple intervals from a given scale
St. Andrew’s Secondary
24 February, 2019
Created by Mr. Lafferty Maths Dept.

3. Created by Mr. Lafferty Maths Dept.
Scales S3
Some scales do not show all the numbers. 10 20 30 2 4 6 8 12 14 16 18 22 24 26 28
You must work out what number goes next to each mark
on the scale.
How do we work out the numbers to go beside each mark?
St. Andrew’s Secondary
Step 1: Count the number of steps between numbers.
In this case it takes 5 steps to get from 0 to 10.
Step 2: Do the division
“ the difference between numbers”
by the step number
24 February, 2019
Created by Mr. Lafferty Maths Dept.

4. Created by Mr. Lafferty Maths Dept.
Scales S3
Find the values of the arrows £0
£10
£20
£30 £6
£18
£25
Step 1: Count the number of steps between numbers.
Step 2: Do the division
“ the difference between numbers”
by the step number
St. Andrew’s Secondary
Step 1 & 2
24 February, 2019
Created by Mr. Lafferty Maths Dept.

5. Created by Mr. Lafferty Maths Dept.
Scales S3
Your turn !
Page 46 Exercise 1
&
Worksheet 1
St. Andrew’s Secondary
24 February, 2019
Created by Mr. Lafferty Maths Dept.