1. 10 12 20 b c b b
30
20
15 a a a
Create one of your own… b 10 17 b c
30 a
27
60 a 10 d

2. 2 x ? 5 ? 3x 5 ?
Create one of your own… 9 12 6 ? 7 ? 3 4 ? ?

3. 10 ? 6 ? 4 2
30 ? ? 3 ? ? ? ? 15 ? ?
40 5
60 ? 9 ? 7
Just for fun… How many ways can you choose two things from four? (order doesn’t matter)

4. 4 10 5 10
30 3 4 8
40
30
30
45
?  ? ?
15
20 ? ? ? 5
Create one of your own…
15 4 4 3
15 3
60
30
45 ? ?
70 ? ? 5

5. In each diagram, add a single force to put the forces into equilibrium10 10
20 10
30
30
70
15 10
40 10 10
Now create three similar questions of your own…

6. Answers to Slide 3 10 5 6
8.66 4 2
30
36.87
70.54 3 ?
5.66 10
10.89 15 12
8.34 5
60
40
36.87 9
8.66 7
Just for fun… How many ways can you choose two things from four? (order doesn’t matter)

7. Answers to Slide 4 4 10 5 10
30 3 4 8
40
30
30
45 45
80.94
43.69
15
20
19.32
5.89
8.13 5
Create one of your own…
15 4 4 3
15 3
60
30
45 ? ?
70 ? ? 5

8. Answers to Slide 5 (to be added)10 10
20 10
30
30
70
15 10
40 10 10
Now create three similar questions of your own…