1. Year 5 Mental Maths Facts Quiz Fiendish Level

2. How many seconds in an hour? 3600 seconds

3. How many weeks in 11 years? 572 weeks

4. How many days are there in the first 6 months of the year (assuming it is not a Leap Year)? 181 days

5. What is 13:13 in 12 hour (analogue) time? 1.13pm

6. What is 5 past midnight in 24 hour (digital ) time? 00:05

7. How many acute angles are there is this triangle? 3

8. Name this triangle scalene

9. What is the size of the missing angle? 78 ? 19 46 37

10. What is the size of the missing angle? 124 ? 35 21

11. What is the size of the missing angle? 156 ? 41 73

12. What is a 4 as a decimal? 5 0.8

13. What is 1 as a percentage? 10 10%

14. What is 0.03 as a fraction? 3 100

15. What is 101% as a decimal? 1.01

16. What is 7% as a fraction? 7 100

17. List the first 10 prime numbers? 2, 3, 5, 7, 11, 13, 17, 19, 23, 29

18. What is 9 ? 81 2

19. What is the square root of 144? 12

20. What is the perimeter of this rectangle? 42.6 cm 2.3cm 19cm

21. What is the area of this rectangle? 43.7 cm 2.3cm 19cm 2

22. What is the volume of this cuboid? 2640 cm 12cm 20cm 3 11cm

23. Convert 4.05 kilograms to grams. 4050g

24. Convert 430 millimetres to metres. 0.43 m

25. What’s 10 ¾ litres in millilitres? 10750 ml

26. What’s 0.02 of a kilometre in metres? 20m

27. ? + 0.15 = 1 0.85

28. How many faces does a hexagonal prism have? 8

29. What is this shape called? Octahedron

30. What is this shape called? Septagon/heptagon

31. How many vertices does a pentagonal based pyramid have? 6

32. What number does this Roman Numeral represent CX ? 110

33. What number does this Roman Numeral represent MDLV ? 1555