LCM Bingo
By Tom Eheman
6
8
9
10
12
15
18
20
21
24
26
27
30
35
36
40
42
45
48
54
56
60
66
68
72
78
80
84
90
100
108
110
120
132
144
162
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Problem 1
LCM of 15 and 9
Answer: 45
Problem 2
LCM of 5 and 7
Answer: 35
Problem 3
LCM of 24 and 36
Answer: 72
Problem 4
Mr. Simon wants to make packages of art
supplies for his students. Pencils come 27 to a
box, and erasers come 12 to a box. What is
the least number of kits he can make if he
wants each kit to be the same with no
supplies left over?
Answer: 108 kits
Problem 5
LCM of 6 and 9
Answer: 18
Problem 6
LCM of 18 and 27
Answer: 54
Problem 7
LCM of 4 and 8
Answer: 8
Problem 8
LCM of 2 and 3
Answer: 6
Problem 9
Two bikers are riding a circular path. The first
rider completes a round in 4 minutes. The
second rider completes a round in 34 minutes.
If they both started at the same place and time
and go in the same direction, after how many
minutes will they meet again at the starting
point?
Answer: 68 minutes
Problem 10
LCM of 9 and 27
Answer: 27
Problem 11
LCM of 11 and 12
Answer: 132
Problem 12
LCM of 3 and 9
Answer: 9
Problem 13
Ben exercises every 2 days and Isabel
every 5 days. Ben and Isabel both
exercised today. How many days will it be
until they exercise together again?
Answer: 10 days
Problem 14
LCM of 54 and 81
Answer: 162
Problem 15
LCM of 3 and 7
Answer: 21
Problem 16
LCM of 36 and 48
Answer: 144
Problem 17
LCM of 6 and 16
Answer: 48
Problem 18
LCM of 12 and 15
Answer: 60
Problem 19
LCM of 24 and 60
Answer: 120
Problem 20
LCM of 8 and 5
Answer: 40
Problem 21
LCM of 6 and 11
Answer: 66
Problem 22
LCM of 12 and 18
Answer: 36
Problem 23
LCM of 6 and 26
Answer: 78
Problem 24
LCM of 2 and 13
Answer: 26
Problem 25
LCM of 12 and 7
Answer: 84
Problem 26
LCM of 18 and 30
Answer: 90
Problem 27
Radio station Z100 gave away a $50 bill for
every 50th caller. Every 20th caller received
free concert tickets. How many callers must
get through before one of them receives both
$50 and a concert ticket?
Answer: 100 callers
Problem 28
LCM of 8 and 12
Answer: 24
Problem 29
LCM of 16 and 20
Answer: 80
Problem 30
LCM of 8 and 14
Answer: 56
Problem 31
LCM of 4 and 20
Answer: 20
Problem 32
LCM of 6 and 7
Answer: 42
Problem 33
LCM of 6 and 15
Answer: 30
Problem 34
LCM of 10 and 11
Answer: 110
Problem 35
LCM of 6 and 4
Answer: 12
Problem 36
LCM of 5 and 15
Answer: 15