Greatest Common Multiple (Grade 5)
This worksheet focuses on identifying the greatest common multiple for given sets of numbers, a key concept in Grade 5 number sense.
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Greatest Common Multiple
Name:
Date:
Score:
Read each question carefully and determine the greatest common multiple (GCM) for the given numbers. Show your work where indicated.
1. The multiples of 3 are 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, .
2. The multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, .
3. The greatest common multiple (GCM) is the number that is a multiple of two or more numbers.
4. To find the GCM, you list the of each number until you find the largest common one.
5. Find the GCM of 6 and 8.
6. Find the GCM of 9 and 12.
7. Find the GCM of 5 and 10.
8. Which of the following is the GCM of 4 and 6?
12
24
2
4
9. The GCM of 7 and 14 is:
7
14
21
2
10. The greatest common multiple of any two numbers is always larger than both numbers.
True
False
11. The GCM of 2 and 5 is 10.
True
False
12. Use the number lines below to help find the GCM of 3 and 4. Circle the common multiples on both lines.
Multiples of 3:
Multiples of 4:
GCM of 3 and 4:
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