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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 - Mathematics
5.23 Number Theory Review Test

Q 1: A pair of primes are said to twin primes is they differ by 2.(True/False)
False
True

Q 2: The sum of two odd numbers is an ___ number.
Even number
Odd number

Q 3: If two numbers do not have any common factors other than 1 they are called relatively prime or co-primes. (True/False)
False
True

Q 4: If A and B are two natural numbers and L and G are their L.C.M. and G.C.D. then relation between these four is A*B = L*G. (True/False)
True
False

Q 5: G.C.D. of 20, 36 and 44 is _____.
6
4

Q 6: ______ is even prime number.
4
2

Q 7: The number of factors of 72 is _____.
10
12

Q 8: 1000-452 is ____ number.
Even number
Odd number

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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