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Chapter 2 Estimation and Number Theory Flashcards | StudBud
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Chapter 2 Estimation and Number Theory
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Chapter 2 Estimation and Number Theory
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Estimation and Number Theory
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Questions
12
Answers
1
Read the question below.
$917
$28
$861
$83
2
Read the Question.
Estimate. Yes
Exact. No.
Estimate. No.
Exact. Yes
3
6, 12, 18, 24, and 30 are the first five multiples of what number?
4
8
6
12
4
What is the least common multiple of 7 and 3?
43
21
36
42
5
Find the product of 382 x 5. Estimate to check that your answer is reasonable.
387
2500
1900
1910
6
What is the greatest common factor of 16 and 24?
48
8
4
96
7
What is the sum of all factors of 24?
46
100
25
60
8
Which is the closest estimate of 49 x 42
40 x 30
50 x 40
40 x 40
50 x 30
9
What is the estimated quotient of 319 ÷ 8?
74
100
120
40
10
Which pair of numbers has 12 as a common factor?
6 and 12
2 and 9
3 and 6
12 and 24
11
List two prime numbers between 20 - 35.
23 and 29
31 and 35
22 and 26
23 and 27
12
Which number is a common factor of 15 and 45?
90
5
15
9
