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WorksheetsMathematics
Total questions: 23
Worksheet time: 12mins
Which of the following are multiples of 10?
1,2,3,4…
2,4,6,8…
10,20,30,40…
3,6,9,12…
Multiples of any number are ………………
many
so many
1000
infinite
Every number is a ………… of itself.
factor
multiple
divisor
dividend
Every number is a multiple of ……
(a)
……… is a factor of every even number.
68
09
11
02
List all the multiples of 7 which lie between 80 and 100.
(a)
………… is the only even number which is prime.
1
2
3
4
Numbers which can be expressed as product of factors other than 1 and itself are known as …………………… ………………… .
prime numbers
composite numbers
neither prime nor composite
either prime or composite
A large odd number will have a/an ………… digit at its unit’s place.
composite
prime
odd
even
25 has 3 factors. State TRUE or FALSE.
TRUE
False
…………… ……………… need not be prime numbers themselves.
Coprime numbers
Prime numbers
Prime triplets
Perfect numbers
Every number is a ……………… number.
linear
prime
composite
even
2 can be shown as _______ for a linear number.
…
..
……
……………………………
A number is divisible by …… , if its unit’s digit ie either 0 or 5.
10
12
5
2
Ten’s digit - unit’s digit = 0. This is the divisibility rule of which number out of the following choices provided?
11
12
13
14
Is it possible that a number is divisible by 8 but not divisible by 4?
Yes
No
Give an example of a number which is divisible by 2 and 3 both.
(a)
To check whether a number is divisible by 42 or not, which two coprime numbers must be tried as divisors for testing the divisibility?
1,18
2,3
6,7
13,5
A number is divisible by 77. What other numbers can be the factors of that number?
1,2,3
6,9,18
2,3,7
1,7,11
HCF of two coprime numbers is ……… .
1
2
3
4
In an art competition, first, second and third prizes comprise of coloured pencils in sets of 30,25, and 20 respectively. How many minimum pencils are required to make sets of either 1st or 2nd or 3rd prize?
400
300
100
200
Find the least number which when divided by 100, 120 or 150, always leaves a remainder 24.
624
538
272
368
The only prime triplet known so far is ……………… .
1,2,3
3,5,7
6,7,5
4,8,10
