kwizNET Subscribers, please login to turn off the Ads!
Email us to get an instant 20% discount on highly effective K-12 Math & English kwizNET Programs!

Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 - Mathematics
5.22 G.C.D. - I

Example:
Find the G.C.D of 16 and 24.

Solution:
Let the factors of 16 is A,
A = {1,2,4,8,16}
Let the factors of 24 is B.
B = {1,2,3,4,6,8,12,24}
The set of common factors be A B.
A B = {1,2,4,8}
The greatest element in the set A B = 8
Therefore, The G.C.D. of 16 and 24 is 8.


Directions: Solve the following problems using above method. Also write at least ten examples of your own.
Q 1: Find the G.C.D of 6 and 12, using the set of Factors method.
5
4
6
8

Q 2: Find the G.C.D of 30 and 50, using the set of Factors method.
40
10
20
30

Q 3: Find the G.C.D of 24 and 52, using the set of Factors method.
24
12
6
16

Q 4: Find the G.C.D of 42 and 58, using the set of Factors method.
4
6
2
8

Q 5: Find the G.C.D of 9 and 81, using the set of Factors method.
3
5
9
8

Q 6: Find the G.C.D of 12 and 78, using the set of Factors method.
10
12
8
6

Q 7: Find the G.C.D of 24 and 72, using the set of Factors method.
24
12
8
16

Q 8: Find the G.C.D of 25 and 30, using the set of Factors method.
15
10
25
5

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


Subscription to kwizNET Learning System offers the following benefits:

  • Unrestricted access to grade appropriate lessons, quizzes, & printable worksheets
  • Instant scoring of online quizzes
  • Progress tracking and award certificates to keep your student motivated
  • Unlimited practice with auto-generated 'WIZ MATH' quizzes
  • Child-friendly website with no advertisements
  • Choice of Math, English, Science, & Social Studies Curriculums
  • Excellent value for K-12 and ACT, SAT, & TOEFL Test Preparation
  • Get discount offers by sending an email to discounts@kwiznet.com

Quiz Timer