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Which list contains only prime numbers?
1
A. 3,5,7,9
B. 5,7,11,13
C. 7, 11, 13, 15
D. 11, 13, 15, 17
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Ezra wants to count the number of rocks in his
collection. He has seven rocks in each row.
Which numbers will he say as he counts by
seven?
2
A. 7, 13, 20
B. 12, 18, 24
C. 27, 36, 45
D. 21, 28, 35
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What number is a factor of 50?
3
A. 5
B. 6
C. 7
D. 8
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Which expression shows factors of 60?
4
A.
B.
C.
D.
2X5X2
3X4X8
5X5X4
6X2X5
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Twelve squares can be arranged into three
different rectangles, as shown below.
5
Which number of squares can be arranged
into only one kind of rectangle?
A. 9
B. 10
C. 13
D. 15
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All the expressions below have a sum of eight.
Which expression contains only prime
numbers?
6
A.
B.
C.
D.
4+4
5+3
6+2
7+1
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The number of baseball cards Jack has is a
prime number. Which of the following numbers
could be the number of baseball cards Jack
has?
7
A. 8
B. 9
C. 10
D. 11
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Which number would complete the model of
the prime factorization of 96?
8
A. 2
B. 3
C. 4
D. 5
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Which number is prime?
9
A. 12
B. 15
C. 19
D. 20
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Stella found all of the prime numbers in the
chart below.
10
How many numbers did she find?
A.
B.
C.
D.
8
9
10
12
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Which number is a prime number between 15
and 25?
11
A. 13
B. 18
C. 21
D. 23
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Simon is playing a card game. He needs to
collect 3 cards. Each card should be a factor
of 20. Which set of cards should Simon
choose?
12
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Which set contains only prime numbers?
13
A.
B.
C.
D.
2, 7, 19, 31
6, 11, 17, 31
7, 19, 21, 37
9, 13, 23, 29
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Which number is a multiple of 6?
14
A.
B.
C.
D.
65
70
79
96
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Which of these is a prime number but NOT a
factor of 63?
15
A. 2
B. 3
C. 6
D. 7
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How many numbers between 10 and 60 are
multiples of 9?
16
A. 3
B. 4
C. 5
D. 6
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Which number goes in the box to complete
the factor tree?
17
A. 10
B. 12
C. 21
D. 24
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Which list contains only prime numbers?
18
A. 13, 19, 21, 27
B. 13, 17, 21, 23
C. 13, 17, 19, 23
D. 13, 21, 23, 27
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Which addition flash card shows ONLY prime
numbers?
19
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Ms. Nguyen wants to make a rectangular patio with square
stones in her backyard. If she uses 18 stones, she can make 3
rectangular designs as shown below.
20
Which number of stones will give her only one rectangular
design for her patio?
A. 32
B. 33
C. 37
D. 39
4.OA.4