Download Math-A: Review 3-6 thru 3-7

Math 7: Review 2-2 to 2-5
Name _________________
A. Factors and Multiples
1.) Find the factors of 56
2.) Find the first five multiples of 16
3.) What number is a factor of every number?
4.) What number is a multiple of every number?
B. Divisibility Rules – Test whether the following numbers are divisible by
2, 3, 4, 5, 6, 8, 9, 10
5.) 351
6.) 55,650
7.) 756
C. Prime Factorization – Use factor trees to find the prime factorization in
exponent form.
8.) 450
9.) 288
10.) 171
Continued on Back
D. Find the GCF of the following pairs of numbers. Use each method at
least once
11.) 88, 132
13.) 48, 20
12.) 15, 32
14.) 18, 32
E. Find the LCM of the following pairs of numbers. Use each method at
least once.
15.) 24, 28
16.) 36, 48
17.) 12, 7
18.) 4, 6
19.) Jack mows the lawn every three weeks and washes the car every two
weeks. If he does both today, how many days will pass before he does
them both on the same day again?
Write two equivalent fractions.
20.)
3
__________, ____________
9
21.)
36
__________, ____________
48
22.)
16
__________, ____________
36
23.)
5
__________, ____________
6
Write each fraction in lowest terms.
24.)
8
__________________
18
25.)
18
__________________
30
26.)
12
__________________
24
27.)
75
___________
90
Compare the following fractions using any method, but be sure to show your work.
28.)
7
3
______
12
4
29.)
1
2
______
4
5
30.)
2
6
______
3
8
31.)
5
3
______
7
4
32.)
3
1
______
10
3
33.)
7
3
______
10
5
Continued on Back
Write the fractions in order from least to greatest. Be sure to show your
work.
1 5 3
, ,
3 6 8
Least __________________________________Greatest
5 7 2
, ,
35.)
8 9 1
Least __________________________________Greatest
1 1 1
36.) , ,
8 6 9
Least __________________________________ Greatest
34.)
Change each mixed number to an improper fraction.
6
7
1
9
5
4
37.)
8 ___________ 38.) 7 ____________ 39.) 5 ____________
Change each improper fraction to a mixed number or a whole number.
40.)
32
___________
5
41.)
73
___________
9
42.)
90
___________
5