1. Cuboid – Surface Area – Bingo Method
Students should choose nine answers from the grid and place them
randomly into a 3x3 square in their book.
You may want to pause your display and choose questions
according to difficulty during the game.
Depending on time, students could win with
a line, an X, or a ‘full house’ (all).

2. Printing To print handouts from slides -
Select the slide from the left. Then click:
File > Print > ‘Print Current Slide’
To print multiple slides -
Click on a section title to highlight all those slides,
or press ‘Ctrl’ at the same time as selecting slides to
highlight more than one. Then click:
File > Print > ‘Print Selection’
To print double-sided handouts -
Highlight both slides before using ‘Print Selection’.
Choose ‘Print on Both Sides’ and ‘Flip on Short Edge’.

3. BINGO! 45 54 23 82 37 12 76 25 91
Surface Area
of a Cuboid

4. Choose your numbers…
108 6 48 40 14 38
112 62 45 96 54 24 58 98
100 34
Draw a 3x3 grid in your book.

5. What is the surface area of this cuboid?
5cm
2cm
3cm
Front & Back:
(2 x 5) x 2 = 20
Top & Bottom:
(3 x 5) x 2 = 30
Total = 62cm2
Left & Right:
(2 x 3) x 2 = 12

6. What is the surface area of this cube?
4cm
1 side:
(4 x 4) = 16
6 sides:
16 x 6 = 96
Total = 96cm2

7. What is the surface area of this cuboid?
5cm
2cm
2cm
Sides:
(2 x 5) x 4 = 40
Total = 48cm2
Left & Right:
(2 x 2) x 2 = 8

8. What is the surface area of this cuboid?
6cm
0.5cm
4cm
Front & Back:
(0.5 x 6) x 2 = 6
Top & Bottom:
(4 x 6) x = 48
Total = 58cm2
Left & Right:
(0.5 x 4) x 2 = 4

9. What is the surface area of this cuboid?
4cm
6cm
3cm
Front & Back:
(4 x 3) x 2 = 24
Top & Bottom:
(6 x 3) x 2 = 36
Total = 108cm2
Left & Right:
(4 x 6) x 2 = 48

10. What is the surface area of this cuboid?
8cm
1cm
1cm
Sides:
(1 x 8) x 4 = 32
Total = 34cm2
Left & Right:
(1 x 1) x 2 = 2

11. What is the surface area of this cube?
3cm
1 side:
(3 x 3) = 9
6 sides:
9 x = 54
Total = 54cm2

12. What is the surface area of this cuboid?
4cm
2cm
2cm
Sides:
(2 x 4) x 4 = 32
Total = 40cm2
Left & Right:
(2 x 2) x 2 = 8

13. What is the surface area of this cube?
1cm
1 side:
(1 x 1) = 1
6 sides:
1 x = 6
Total = 6cm2

14. What is the surface area of this cuboid?
3cm
1cm
1cm
Sides:
(3 x 1) x 4 = 12
Top & Bottom:
(1 x 1) x 2 = 2
Total = 14cm2

15. What is the surface area of this cuboid?
0.5cm
3cm
5cm
Front & Back:
(3 x 0.5) x 2 = 3
Top & Bottom:
(5 x 0.5) x 2 = 5
Total = 38cm2
Left & Right:
(3 x 5) x = 30

16. What is the surface area of this cuboid?
7cm
2cm
4cm
Front & Back:
(2 x 7) x 2 = 28
Top & Bottom:
(4 x 7) x 2 = 56
Total = 100cm2
Left & Right:
(2 x 4) x 2 = 16

17. What is the surface area of this cuboid?
1.5cm
4cm
3cm
Front & Back:
(4 x 1.5) x 2 = 12
Top & Bottom:
(3 x 1.5) x 2 = 9
Total = 45cm2
Left & Right:
(4 x 3) x = 24

18. What is the surface area of this cuboid?
4cm
8cm
2cm
Front & Back:
(4 x 8) x 2 = 64
Top & Bottom:
(2 x 8) x 2 = 32
Total = 112cm2
Left & Right:
(4 x 2) x 2 = 16

19. What is the surface area of this cube?
2cm
1 side:
(2 x 2) = 4
6 sides:
4 x = 24
Total = 24cm2

20. What is the surface area of this cuboid?
2.5cm
4cm
6cm
Front & Back:
(4 x 2.5) x 2 = 20
Top & Bottom:
(6 x 2.5) x 2 = 30
Total = 98cm2
Left & Right:
(4 x 6) x = 48

22. tom@goteachmaths.co.uk Questions? Comments? Suggestions?
…or have you found a mistake!?
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