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EDM Unit 1 Review Flashcards | StudBud
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EDM Unit 1 Review
Is 20 prime or composite?
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EDM Unit 1 Review
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A review for unit 1 of EDM
Flashcards
24 cards
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Practice quiz
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Questions
24
Answers
1
5
2
=
5 x 2
5 x 10
5 x 1
5 x 5
2
Is 20 prime or composite?
Composite
Prime
3
8 + 6
15
24
14
48
4
How many arrays (fact families) can you draw for the number 12?
6
None
1
2
5
708,003.05 What number is in the hundred-thousands place?
0
5
8
7
6
35 / 5
5
6
9
7
7
Which number is composite?
11
3
1
9
8
9 x 8
81
72
64
17
9
What is a possible array for 16?
8 x 2
All of the above
4 x 4
1 x 16
10
18-9
8
10
11
9
11
12 is...
A number
Composite
Prime
12
5 + 7
10
12
7
13
13
Write the prime factorization for 12 (factor tree)
4 x 3
6 x 2
12 x 1
2 x 2 x 3
14
Write the prime factorization for 24 (factor tree)
24 x 1
2 x 2 x 2 x 3
6 x 2 x 2
4 x 2 x 3
15
19 - 9
9
20
11
10
16
6 x 3
18
16
12
9
17
Prime and composite numbers are ...
Synonyms
Antonyms
18
8
2
= _ x _
8 x 2
8 x 8
19
24,734.45 What number is in the hundredths place?
4
7
2
5
20
7
2
=
49
28
14
7
21
List all the factors for 8
1, 8
2, 4
1, 2, 4, 8
1, 2, 8
22
Which number is prime?
24
18
15
5
23
_
2
= 11 x 11
121
11
24
List all the factors for 12. Hint: Use a factor rainbow
1, 2, 3, 12
1 , 2, 3, 4, 6, 12
1, 12
2, 4, 6
