Multiple Choice
Identify the choice that best completes the
statement or answers the question.
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Number and Number Sense
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1.
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Look at the set shown below.
{2a, 3a,
4a}
If a is a prime number, how many members of the set are also
prime?
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2.
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A = {2, 3, 5, 7, 11, 19, 23, 29}
Which
of the following is a true statement concerning A? A | All numbers in A are even. | B | All numbers in A are prime. | C | All numbers in A are
composites. | D | All numbers in A are odd. |
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3.
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How many factors does a prime number have?
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4.
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What numbers complete this factor tree?
A | 2, 4, and 7 | C | 3, 4, and
7 | B | 3, 4, and 6 | D | 2, 3, and
7 |
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5.
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What numbers complete this factor tree?
A | 2 x 14 | C | 7 x 7 x
7 | B | 2 x 2 x 7 | D | 2 x 7 x
7 |
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6.
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Which of these is a prime number?
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7.
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Which of these is a prime number?
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8.
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Which of these is a prime number?
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9.
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Which of these is a composite number?
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10.
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Which of these is a composite number?
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