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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: If G.C.D. and L.C.M. of two numbers are 12 and 72. one number is 24 then the other number is _____.
36
38

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

Q 3: The number of factors of 72 is _____.
12
10

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. means greatest common divisor. (True/False)
False
True

Q 6: The sum of the first 10 odd numbers is ____.
100
150

Q 7: 35 and 21 are relatively prime numbers. (True/False)
True
False

Q 8: G.C.D of 36 and 48 is ______.
8
6

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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