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Test Your Maths Knowledge (2)

In this worksheet, students test their maths knowledge by answering these mixed questions as quickly and accurately as possible. Most can be answered without writing anything down.

'Test Your Maths Knowledge (2)' worksheet

Key stage:  KS 3

Curriculum topic:  Number

Curriculum subtopic:  Use Four Operations for All Numbers

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

In this worksheet, you must answer short mental arithmetic questions which get progressively harder.

Try to do as much working in your head.

Remember some quick short cuts, such as:

1.  To multiply by 4, just double and double again.

2.  To find a quarter of something, just halve and halve again.

3.  To find 10% of something, just divide by 10.

What is the product of 8 and 9 ?

How many centimetres are there in 4½ metres?

Work out three-fifths of 20.

Write 6.745 correct to 1 decimal place.

Write 8.45 pm in 24-hour clock time.

(just write numbers)

What is the order of rotational symmetry of a rectangle?

Ed beats Ben in 16 matches out of 20.  

What percentage is this?

(just write the number)

Choose two prime factors of 70.

1

2

7

10

14

Sam and Henry share £30 in the ratio 3:2.

How much does Henry receive?

Anna has a 20 gigabyte hard drive on her MP3 player.  Three quarters of it is used.  How many gigabytes are not used? 

How many equal angles are there in an isosceles triangle?

Sophie cycles a distance of 6850 metres.  Write this distance in kilometres.

(Just write the number)

What is the value of 3n + 2 when n equals 25?

 

Charlotte buys a sandwich costing £1.45 and a drink costing 90p.  How much change does she get from a £5 note?

Lily and Patrick have 20 marbles each.  If Lily gives Patrick four marbles, write down, in its lowest terms, the ratio of the number of marbles that Lily now has to the number of marbles that Patrick has?

(use the : symbol)

What is the area of a parallelogram in cm2 with base 14 cm and height 3 cm?

(just write the number)

Issy pays £3.84 for a book of 12 stamps.  What is the cost of each stamp in p?

A recipe for Aunty Alice’s Artichoke Soup requires 300 ml of cream for 4 people.  How many ml of cream will be needed in a similar recipe for 10 people?

(just write the number)

A train travels 400 km in three hours and twenty minutes.  What is its average speed in kilometres per hour?

(Just write the number)

The radius of the Earth is approximately 6 400 kilometres.  Estimate the circumference of the Earth to the nearest 10 000 km?

(just write the number)

  • Question 1

What is the product of 8 and 9 ?

CORRECT ANSWER
72
  • Question 2

How many centimetres are there in 4½ metres?

CORRECT ANSWER
450
  • Question 3

Work out three-fifths of 20.

CORRECT ANSWER
12
  • Question 4

Write 6.745 correct to 1 decimal place.

CORRECT ANSWER
6.7
  • Question 5

Write 8.45 pm in 24-hour clock time.

(just write numbers)

CORRECT ANSWER
20 45
2045
  • Question 6

What is the order of rotational symmetry of a rectangle?

CORRECT ANSWER
2
  • Question 7

Ed beats Ben in 16 matches out of 20.  

What percentage is this?

(just write the number)

CORRECT ANSWER
80
  • Question 8

Choose two prime factors of 70.

CORRECT ANSWER
2
7
  • Question 9

Sam and Henry share £30 in the ratio 3:2.

How much does Henry receive?

CORRECT ANSWER
£12
£ 12
  • Question 10
Anna has a 20 gigabyte hard drive on her MP3 player.  Three quarters of it is used.  How many gigabytes are not used? 

CORRECT ANSWER
5
  • Question 11

How many equal angles are there in an isosceles triangle?

CORRECT ANSWER
2
  • Question 12

Sophie cycles a distance of 6850 metres.  Write this distance in kilometres.

(Just write the number)

CORRECT ANSWER
6.85
  • Question 13

What is the value of 3n + 2 when n equals 25?

CORRECT ANSWER
77
  • Question 14

 

Charlotte buys a sandwich costing £1.45 and a drink costing 90p.  How much change does she get from a £5 note?

CORRECT ANSWER
£2.65
£ 2.65
  • Question 15

Lily and Patrick have 20 marbles each.  If Lily gives Patrick four marbles, write down, in its lowest terms, the ratio of the number of marbles that Lily now has to the number of marbles that Patrick has?

(use the : symbol)

CORRECT ANSWER
2:3
  • Question 16

What is the area of a parallelogram in cm2 with base 14 cm and height 3 cm?

(just write the number)

CORRECT ANSWER
42
  • Question 17

Issy pays £3.84 for a book of 12 stamps.  What is the cost of each stamp in p?

CORRECT ANSWER
32p
32 p
  • Question 18

A recipe for Aunty Alice’s Artichoke Soup requires 300 ml of cream for 4 people.  How many ml of cream will be needed in a similar recipe for 10 people?

(just write the number)

CORRECT ANSWER
750
  • Question 19

A train travels 400 km in three hours and twenty minutes.  What is its average speed in kilometres per hour?

(Just write the number)

CORRECT ANSWER
120
  • Question 20

The radius of the Earth is approximately 6 400 kilometres.  Estimate the circumference of the Earth to the nearest 10 000 km?

(just write the number)

CORRECT ANSWER
40000
---- OR ----

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