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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: The sum of any two odd numbers is _____.
Even number
Odd number

Q 2: A positive number is said to be a ___ if p>1 and p havs no divisors expect 1 and p.
Perfect number
Prime number

Q 3: Two relatively prime numbers need not be prime numbers. (True/False)
True
False

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

Q 5: If a and b are co-primes their G.C.D. = ____.
2
1

Q 6: 1000-452 is ____ number.
Even number
Odd number

Q 7: 2k+1(k belongs to w) = ____ number.
Odd number
Even number

Q 8: 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)
False
True

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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