Basic Civil Engineering first year Notes- Chapter 4 Building.pptx
How To Do KS2 Maths SATs Paper B Percentage Questions (Part 2)
1. How To Do KS2 Maths SATs
Type Questions
(Paper B – Calculator Allowed)
Percentages 2: Calculating
How Much Of A Grid Is
Shaded
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2. In a SATs Paper B you might be asked to work out what
percentage of a grid is shaded:
3. For example: Here is a grid of 20 tiles. What percentage of
the tiles are shaded blue?
Firstly count up the number of shaded tiles:
4. For example: Here is a grid of 20 tiles. What percentage of
the tiles are shaded blue?
Firstly count up the number of shaded tiles:
There are 6
5. For example: Here is a grid of 20 tiles. What percentage of
the tiles are shaded blue?
Firstly count up the number of shaded tiles:
There are 6
As a fraction: 6/20 of the grid is shaded
6. For example: Here is a grid of 20 tiles. What percentage of
the tiles are shaded blue?
Now convert 6/20 to a fraction with a denominator of 100
7. For example: Here is a grid of 20 tiles. What percentage of
the tiles are shaded blue?
Now convert 6/20 to a fraction with a denominator of 100
6
20
=
X5
8. For example: Here is a grid of 20 tiles. What percentage of
the tiles are shaded blue?
Now convert 6/20 to a fraction with a denominator of 100
6
20
=
100
X5
9. For example: Here is a grid of 20 tiles. What percentage of
the tiles are shaded blue?
Now convert 6/20 to a fraction with a denominator of 100
X5
6
=
100
20
X5
10. For example: Here is a grid of 20 tiles. What percentage of
the tiles are shaded blue?
Now convert 6/20 to a fraction with a denominator of 100
X5
30
6
=
100
20
X5
11. For example: Here is a grid of 20 tiles. What percentage of
the tiles are shaded blue?
This fraction can then be converted directly to a %
X5
30
6
=
100
20
X5
12. For example: Here is a grid of 20 tiles. What percentage of
the tiles are shaded blue?
This fraction can then be converted directly to a %
X5
30
6
=
100
20
X5
=
30%
13. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
14. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
Firstly count up the total number of tiles.
15. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
Firstly count up the total number of tiles. There are 50.
16. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
Firstly count up the total number of tiles. There are 50.
Then count up the number of tiles that are shaded green.
17. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
Firstly count up the total number of tiles. There are 50.
Then count up the number of tiles that are shaded green.
There are 14
18. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
Firstly count up the total number of tiles. There are 50.
Then count up the number of tiles that are shaded green.
There are 14
As a fraction, this is written as 14/50
19. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
Now convert 14/50 to a fraction with a denominator of 100
20. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
Now convert 14/50 to a fraction with a denominator of 100
14
50
=
21. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
Now convert 14/50 to a fraction with a denominator of 100
14
50
=
X2
22. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
Now convert 14/50 to a fraction with a denominator of 100
14
50
=
100
X2
23. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
Now convert 14/50 to a fraction with a denominator of 100
X2
14
=
100
50
X2
24. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
Now convert 14/50 to a fraction with a denominator of 100
X2
28
14
=
100
50
X2
25. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
This fraction can then be converted directly to a %
X2
28
14
=
100
50
X2
26. Another example: Here is a pattern on a grid. What
percentage of the tiles are shaded green?
This fraction can then be converted directly to a %
X2
28
14
=
100
50
X2
=
28%
27. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in white?
28. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in white?
29. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in white?
5
25
30. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in white?
5
=
25
100
X4
31. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in white?
5
X4
=
25
20
100
X4
32. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in white?
5
X4
=
25
20
100
X4
=
20%
33. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in pink?
34. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in pink?
9
20
35. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in pink?
9
20
=
X5
100
36. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in pink?
9
20
X5
=
X5
45
100
37. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in pink?
9
20
X5
=
X5
45
100
=
45%
38. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in blue?
39. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in blue?
7
20
40. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in blue?
7
20
=
X5
100
41. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in blue?
7
20
X5
=
X5
35
100
42. Now try some by yourself. Click to find the correct answer:
What percentage of this grid is coloured in blue?
7
20
X5
=
X5
35
100
=
35%
43. That’s it for now......
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