myTestBook.com Math Reading Science Practice Test for Grade 1, 2, 3, 4 & 5

<< back This is a SAMPLE test for Grade: 7, Subject: Math  
Test Topic(s): LCM (Least Common Multiple)

Question 1:
Find the least common multiple of 12 and 80.
280
164
224
240
Question 2:
Find the LCM of 9, 10 and 45.
90
60
54
95
Question 3:
Find the LCM of 54 and 90.
180
270
216
121
Question 4:
Find the LCM of 26 and 34.
234
446
442
421
Question 5:
Jerry has a pack of cards. If he makes group of 3 cards or group of 8 cards or group of 12 cards, no card is left over. How many cards does he have in the pack?
24
12
16
21
Question 6:
Paul has two mystery numbers in his mind. Their least common multiple is 45 and greatest common factor is 3. Which two numbers does he have in his mind?
3 and 4
9 and 15
9 and 18
6 and 20
Question 7:
Find the LCM of 36 and 100.
600
180
90
900
Question 8:
Find the least common multiple of 14,   21 and 32.
124
1,120
210
672
Question 9:
Both Maria and Katrina are taking piano classes. Maria has piano class every 3rd day and Katrina has her class on every 5th day. Which is true about their classes?
They will both have a class on the 12th day.
They will both have a class on the 18th day.
They will both have a class on the 15th day.
They will never have a class on the same day.
Question 10:
Find the LCM of 16, 25 and 40.
150
400
80
300

 





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