Calculate a simple fraction of a collection/quantity, with and without the use of digital technologies, eg calculate 2/5 of 30

1. Birthday Spending: $150/ 2
2. Ralph Finds Half - 14km / 2
3. Ralph Finds Half - 10km / 2
4. Fiona Finds a Third - 6 bounding kangaroos
5. Fiona Finds a Third - 9 fluoro green tennis balls
6. Phoebe Figures Fractions: one third of 9 cm
7. Dividing the cake: How many thirds in one whole cake?
8. Phoebe Figures Fractions: One-third of 24
9. Figuring Fractions: One-third of 30
10. Phoebe Figures Fractions: How many grams in a quarter of a kg?
11. Dividing the cake: How many thirds in 1? thirds in 2?
12. Dividing the Cake-halves
13. Dividing the Cake-tenths
14. Dividing the Cake-thirds
15. Dividing the Cake-quarters
16. Dividing the Cake-fifths
17. Fraction wise 1/10 of $80
18. Fraction wise 1/100 of 1000L
19. Fraction wise 1/100 of 100L
20. Here a fraction there a fraction: Calculate a fraction of a quantity, then a fraction of the fraction.
21. Ralph Finds Half - 24km / 2
22. Detective Duck: 1/3 of 18
23. Detective Duck: 1/4 of 12
24. Detective Duck: 1/4 of 24
25. Detective Duck: 1/5 of 100
26. Detective Duck: 1/2 of 8
27. Detective Duck: 1/2 of 16
28. Dollar Shares: Half of $400
29. Dollar Shares: Half of $500
30. Dollar Shares: Half of $200
31. Detective Duck: 1/4 of 16 kg
32. Detective Duck: 1/4 of 40 centimetres
33. Detective Duck: 1/4 of 8 metres
34. Ralph Finds A Third - 18 / 3
35. Ralph Finds Half - 32 metres ÷ 2
36. Ralph Finds A Third - 21 / 3
37. Head Quarters: One half & one quarter of 416
38. Head Quarters: One half & one quarter of 852
39. Head Quarters: One half & one quarter of 212
40. Head Quarters: One half & one quarter of 160
41. Head Quarters: One half & one quarter of 128
42. Head Quarters: One half & one quarter of 384
43. Head Quarters: One half & one quarter of 656
44. Head Quarters: One half & one quarter of 540
45. Head Quarters: One half & one quarter of 324
46. Head Quarters: One half & one quarter of 224
47. Bessie Finds Half: 42 ballroom dancers