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Quick Fire Mental Arithmetic Quiz

20 mental arithmetic questions. 20 Questions.

 
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multiplemiggs
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1

What is two thirds of 18?

  • 6
  • 10
  • 12
  • 15

2

Which of these is a prime number?

  • 1
  • 21
  • 51
  • 71

3

How many seconds are there in two and a half minutes?

  • 150
  • 180
  • 230
  • 250

4

How long is it between 230pm and 805pm?

  • 5 hours 25 minutes
  • 5 hours 35 minutes
  • 6 hours 25 minutes
  • 6 hours 35 minutes

5

Which of these is a square number?

  • 8
  • 72
  • 164
  • 196

6

Match up the following.

Drag items from right column to match with left column

Left

  • Square root of 16
  • The only even prime number
  • 3 cubed
  • 72 divded by 4

Right

  • 2
  • 27
  • 18
  • 4

7

If a car is travelling at 70 mph for 5 hours, how far does it travel?

  • 14 miles
  • 75 miles
  • 350 miles
  • 705 miles

8

What is the square root of 25 times the cube root of 216?

  • 25
  • 30
  • 35
  • 40

9

The first two perfect numbers are 6 and 28. What is the third perfect number?

  • 29
  • 50
  • 496
  • 1729

10

What is pi written to 10 decimal places?

  • 3.1415926575
  • 3.1415926565....
  • 3.1415926545....
  • 3.1415926535....

11

What is 999.99 rounded to 1 decimal place?

  • 999.9
  • 9999
  • 1000.0
  • 1000

12

If it takes 2 men 9 hours to dig a hole, how long will it take 3 men?

  • 3 hours
  • 6 hours
  • 9 hours
  • 13.5 hours

13

A bus can carry 60 people. How many buses would be needed to carry 210 people?

  • 4
  • 4.5
  • 5
  • 3

14

I think of a number. I times the number by itself then add 3. If the answer to this is 67 what was the number I was first thinking of?

  • 9
  • 10
  • 7
  • 8

15

Which of following is the Fibonacci sequence?

  • 1, 3, 4, 7, 11, 18, 29.......
  • 1, 2, 3, 5, 8, 13, 21......
  • 1, 1, 2, 3, 5, 8, 13........
  • 2, 3, 5, 8, 13, 21, 34......

16

If you enlarge a cube by a scale factor of 3, by what factor does it's volume increase?

  • 3
  • 9
  • 27
  • 81

17

What are all the factors of 32?

  • 1, 2, 4, 6, 18, 32
  • 1, 2, 4, 8, 16, 32
  • 1, 3, 4, 12, 16, 32
  • 1, 2, 5, 6, 9, 32

18

What is 35% expresses as a simplified fraction?

  • 35/100
  • 5/15
  • 7/35
  • 7/20

19

If £40 is shared in the ratio 2:3 between David and Jane respectively, how much does Jane get?

  • £16
  • £24
  • £28
  • £32

20

What is the more common name for a regular quadrilateral?

  • Rectangle
  • Circle
  • Pyramid
  • Square

 

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