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WorksheetsU5: Lesson 2 Mastery Check GCF & Simplifying
Total questions: 47
Worksheet time: 2hrs 42mins
Name
Class
Date
1.
Find the GCF of 64 and 144
a)
8
b)
6
c)
16
d)
2
2.
Find the LCM of 42 and 66
a)
2772
b)
6
c)
462
d)
132
3.
Find the GCF of 12 and 6.
a)
1
b)
6
c)
2
d)
3
4.
Which of the choices is a factor of 10?
a)
2
b)
4
c)
6
d)
8
5.
51 is a _____________ of 3
a)
Factor
b)
Multiple
6.
Which is a NOT a factor of 9?
a)
0
b)
1
c)
3
d)
9
7.
Is this question asking to find GCF or LCM?
a)
GCF
b)
LCM
8.
Is this question asking to find GCF or LCM?
a)
GCF
b)
LCM
9.
GCF of 35 and 49
a)
5
b)
3
c)
7
d)
4
10.
GCF of 36 and 99
a)
9
b)
6
c)
11
d)
4
11.
What does GCF stand for?
a)
Good Cold Flu
b)
Gaussian Coefficient Formula
c)
Given Clear Function
d)
Greatest Common Factor
12.
GCF of 28 and 40
a)
2
b)
4
c)
7
d)
8
13.
What number is a factor for EVERY number?
a)
0
b)
1
c)
2
d)
100
14.
Which of the following numbers is prime?
a)
15
b)
18
c)
19
d)
21
15.
Which of the following is composite?
a)
11
b)
13
c)
19
d)
21
16.
GCF 15 and 33
a)
15
b)
3
c)
11
d)
5
17.
Which of the following numbers is NOT a factor of 24?
a)
6
b)
8
c)
3
d)
7
18.
Bill cut out 6 squares and 8 circles. He divided the cutouts into groups so that the same number of squares and circles were in each group. What is the greatest number of groups he could have made?
a)
2
b)
3
c)
4
19.
Jenny goes to dance class every 6 days, karate class every 12 days, and to the library every 18 days. On December 1st she went to both classes and the library. On what date will she do both classes and go to the library?
a)
Greatest Common Factor
b)
Least Common Multiple
20.
List all the factors of 12
a)
1, 2, 3, 4, 6, 12
b)
1, 2, 4, 12
c)
1, 12
d)
1, 2, 3, 4, 5, 6, 12
21.
What is the least common multiple (LCM) of 4 and 9?
a)
12
b)
36
c)
27
d)
9
22.
What is the GCF of 20 and 30?
a)
5
b)
2
c)
10
d)
20
23.
What are the factors of 16 and 24?
a)
16-1, 3, 6, 12, 16
24-1, 2, 4, 6, 24
24-1, 2, 4, 6, 24
b)
16-1, 2, 4, 8, 16
24-1, 2, 3, 4, 6, 8, 12, 24
24-1, 2, 3, 4, 6, 8, 12, 24
c)
16-16, 32, 48, 54
24-24, 48, 72, 86
24-24, 48, 72, 86
d)
16- 1, 2, 16
24-1, 2, 12, 24
24-1, 2, 12, 24
24.
Reduce 2/4
a)
1/3
b)
2/5
c)
3/6
d)
1/2
25.
Simplify 9/18 to lowest terms.
a)
1/2
b)
3/6
c)
9/18
d)
5/10
26.
Reduce 4/16 to lowest terms.
a)
4/16
b)
2/8
c)
1/4
d)
4
27.
Simplify 70/80 to lowest terms.
a)
35/40
b)
7/8
c)
9/10
d)
14/16
28.
Reduce 18/24 to lowest terms.
a)
4/3
b)
9/12
c)
3/4
d)
1/2
29.
Simplify 5/40 to lowest terms.
a)
2/20
b)
5/40
c)
8
d)
1/8
30.
Reduce 21/36 to lowest terms.
a)
2/3
b)
11/18
c)
11/12
d)
7/12
31.
Simplify 6/9 to lowest terms.
a)
2/3
b)
1/5
c)
3/4.5
d)
1/3
32.
Reduce 21/56 to lowest terms.
a)
7/8
b)
3/8
c)
5/13
d)
10/27
33.
Simplify 9/36 to lowest terms.
a)
4
b)
3/12
c)
1/4
d)
12
34.
What number would you divide the numerator and denominator by when simplifying this fraction? 2/12
a)
2
b)
3
c)
6
d)
12
35.
What is the largest number you would divide the numerator and denominator by when simplifying this fraction? 4/16
a)
2
b)
4
c)
8
d)
16
36.
What number would you divide the numerator and denominator by when simplifying this fraction? 10/25
a)
2
b)
5
c)
10
d)
25
37.
What number would you divide the numerator and denominator by when simplifying this fraction? 6/9
a)
2
b)
3
c)
6
d)
9
38.
What number would you divide the numerator and denominator by when simplifying this fraction? 14/21
a)
2
b)
3
c)
7
d)
14
39.
What is the largest number you would divide the numerator and denominator by when simplifying this fraction? 20/50
a)
2
b)
5
c)
10
d)
20
40.
Simplify
a)
1/4
b)
6/10
c)
4/4
d)
3/4
41.
Simplify
a)
1/5
b)
1/3
c)
3/5
d)
2/3
42.
Simplify
a)
1/4
b)
1/24
c)
6/4
d)
1/18
43.
Simplify 4/6
a)
2/4
b)
2/3
c)
11/15
44.
Simplify 75/75
a)
1
b)
2/6
c)
7/5
d)
4/7
45.
Reduce
366
a)
122
b)
183
c)
61
d)
6
46.
Put
3624
into simplest form
a)
32
b)
64
c)
54
d)
123
47.
Simplify
2515
a)
51
b)
54
c)
65
d)
53
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