1. Starter Questions St. Andrew’s Secondary Q1. 34.5 + 0.6 + 5
Q2. Tidy-up the expression
St. Andrew’s Secondary
Q3.
Q4.
Created by Mr. Lafferty
Maths Dept

2. Recap St. Andrew’s Secondary Put over 100 Put over 100 S3 3 7
Created by Mr. Lafferty
Maths Dept

3. How to find % of a quantity using a calculator
example
Find
Step 1 : Convert % to a decimal
of means x
Step 2 :
St. Andrew’s Secondary
Step 3 : Do sum
Calculator Keys 5 1 x 3 =
150
Created by Mr. Lafferty
Maths Dept

4. How to find % of a quantity using a calculator
example
Find
Step 1 : Convert % to a decimal
of means x
Step 2 :
St. Andrew’s Secondary
Step 3 : Do sum
Calculator Keys 4 1 x 4 8 =
192
Created by Mr. Lafferty
Maths Dept

5. How to find % of a quantity using a calculator
Your turn
Try Q4 onwards
Exercise 3
Page 62
St. Andrew’s Secondary 4
Created by Mr. Lafferty
Maths Dept