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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
18
4
27
2
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 Â£40 is shared in the ratio 2:3 between David and Jane respectively, how much does Jane get?
Â£16
Â£24
Â£28
Â£32
20
What is the more common name for a regular quadrilateral?
Rectangle
Circle
Pyramid
Square
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