1. Fractions, decimals and percentages
Level 4/5 Booster
Lesson 2B
Fractions, decimals and percentages

2. multiple recurring decimal Equivalent Objectives:
Use the equivalence of fractions, decimals and percentages to compare proportions.
Calculate percentages and fractions of an amount.
Vocabulary:
multiple
recurring decimal
Equivalent

3. T2.1B
Find equivalent fractions.
10%
30%
75%
0.1
0.75
50%
0.3
25%
0.25
1/10
3/4
3/10 1%
1/4
0.5
1/2
Write down any other sets of equivalent fractions.

4. T2.2B
Give 50% of each number: 2 36 10 40 70 15 90 28 50
700 20
100 6 48
140 8

5. Give one-half of each of these numbers:
T2.2B 2 36 10 40 70 15 90 28 50
700 20
100 6 48
140 8

6. T2.2B
Find 25% of each of the following numbers: 2 36 10 40 70 15 90 28 50
700 20
100 6 48
140 8

7. T2.2B
Find ¾ of each of the following numbers. 2 36 10 40 70 15 90 28 50
700 20
100 6 48
140 8

8. How many times does 10% fit into 100%?
There are 10 lots of 10% in 100%.
What fraction is 10% the same as?
10% is the same as
How can you find 10% of a number?
To find 10% we need to divide by 10.
Explain how to find 10% of 450.
450 divided by 10 is 45 – move each digit one column to the right.

9. T2.3B
Find 10% of each of the following amounts: 20
120
150
100
270
200
550
600
220
900 50 40
300 70
1200
7000

10. If I can find 10% what other percentages can I find?
To find 20% we can do 2 x 10%
To find 30% we can do…………
To find 40% we can do …………….
How would you find 50%?
Which is the easiest way to find 50%?

11. W/S 2.1B
Find 10% and then use it to find other percentage amounts.
50% is
10% is
460
20% is
30% is
On a copy of this spider diagram fill in the answers to those percentages stated and find some other percentages of your own choice.

12. Percentage Spider Diagram
W/S2.1B
On a copy of this diagram start with a number of your own choice and complete a percentage spider diagram.

13. multiple recurring decimal Equivalent Objectives:
Use the equivalence of fractions, decimals and percentages to compare proportions.
Calculate percentages and fractions of an amount.
Vocabulary:
multiple
recurring decimal
Equivalent

14. Thank you for your attention