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Chapter 3 Number Theory
What is the product of 2.13 X 3.5
Find the GCF of 12 and 62.
Chapter 3 Number Theory
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Answers
1
Find the GCF of 12 and 62.
1
4
2
12
2
What is the product of 2.13 X 3.5
5.63
74.55
6.39
7.455
3
Test 207 for divisibility by 2, 3, 5, 9, and 10.
2 and 9
2 and 3
3 and 9
3, 9, 10
4
Use the Distributive Property to write an equivalent expression for 5(2x+6)
10x+30
10x - 30
10x+11
10x-11
5
Find the prime factorization of 100.
22 X 52
22 X 53
22 X 5
23 X 52
6
Factor the expression 8 + 22
4(2+5)
2(2+11)
2+(4+11)
2(4+11)
7
Use the Distributive Property to write an equivalent expression for 8(3x+2y-8)
24x+90y
24x+16y-8
24x+16y+64
24x+16y-64
8
Simplify the expression 5b+3c+16b-c
21b-c
21b+3c-c
21b-2c
21b+2c
9
FInd the LCM of 12 and 22.
22
124
12
132
10
Use the Distributive Property to write an equivalent expression for 2(x-3y+7)
2x-6y+7
1x-6y+14
2x-6y+14
2x+6y+14
11
Simplify: 3
2 +
2
3
12
16
17
15
12
Find the LCM of 10, 20, and 35.
400
140
20
160
13
Test 756 for divisibility by 2, 3, 5, 9, and 10.
all
2, 3, and 9
3 and 9
2 and 9
14
Factor the expression 56n+48.
8n(7+6)
2(28n-24)
8(7+6)
8(7n+6)
15
Find the GCF of 18 and 28.
2
16
12
3
16
Which shows the simplified form for 4n+2p+15n-4n-p?
15n
21n-p
n(4+2+15-4)-p
15n+p
17
Find the prime factorization of 28.
22 X 7
23 X 7
2 X 2 X 3
2 X 3 X 5
18
Simplify the expression 5x+6x-4x
7
7x
10x-4x
8x
19
Justin buys 8 cantaloupes for $2.25. Find the cost using the Distributive Property.
8 +($2 + $.25) = $10.52
$2.25(4X4)=$36
8($2 + $.25) = $18
8($2 X $.25) = $4
20
Factor the expression 18x-63.
3(6x+21)
9x(2+7)
9(2x-7)
9(2x+7)
