Year 5 Mental Maths Facts Quiz

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 1313 in 12 hour (analogue) time?

• 1.13pm

6
What is 5 past midnight in 24 hour (digital )
time?

• 0005

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?
?
46
19
37

• 78

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

• 124

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

• 156

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 ?
2

• 81

19
What is the square root of 144?

• 12

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

• 42.6 cm

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

• 43.7 cm

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

• 2640 cm

23
Convert 4.05 kilograms to grams.

• 4050g

24
Convert 430 millimetres to metres.

• 0.43 m

25
Whats 10 ¾ litres in millilitres?

• 10750 ml

26
Whats 0.02 of a kilometre in metres?

• 20m

27
? 0.15 1

• 0.85

28
How many faces does a pentagonal 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