Least Common Multiple
2 years ago
eturner1990
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• Question 1
60 seconds
Q. What is the least common multiple (LCM) of 3 and 20?
60
40
20
3
• Question 2
60 seconds
Q. What is the least common multiple (LCM) of 8 and 5?
50
40
5
8
• Question 3
60 seconds
Q. What is the least common multiple (LCM) of 15 and 2?
30
2
45
152
• Question 4
60 seconds
Q. What is the least common multiple (LCM) of 6 and 8?
6
8
48
24
• Question 5
30 seconds
Q. The multiples of 7 are
1,6,7,9,3,6,4
True
False
• Question 6
180 seconds
Q. Choose the correct list of the first five multiples of 10.
1, 10, 20, 30, 40
10, 20, 30, 40, 50
5, 10, 15, 20, 25
10, 30, 40, 50, 60
• Question 7
300 seconds
Q. Choose the correct list of the first five multiples of 6.
6, 12, 18, 32, 36
6, 14, 22, 28, 34
6, 12, 18, 24, 32
1, 6, 12, 18, 24
• Question 8
300 seconds
Q. If Juanita runs every third day and swims every fifth day, what is the first day that she will both run and swim again?
5
15
45
30
• Question 9
300 seconds
Q. Cups are sold 5 to a package and plates are sold 10 to a package. If you want to have the same number of each item for a party, what is the least number of packages of each you need to buy?
30
20
50
10
• Question 10
300 seconds
Q. Use a number tree to find the prime factorization of 34
2x2x2x4
2x2x2x2x2
4x4x2
2x2x2x2x1
• Question 11
60 seconds
Q. All of these are prime except
3
9
2
13
• Question 12
30 seconds
Q. Which of these is NOT a factor of 36?
2
8
12
6
• Question 13
120 seconds
Q. What number could be a common denominator for these two fractions?
2/3   and   3/4
3
4
7
12
• Question 14
900 seconds
Q. What is the least common denominator of 1/7 and 3/6?
14
21
7
42
• Question 15
120 seconds
Q. What is the LCM of 2, 4, 6?