BA4 - Topic 7 Review

Brad has 42 stamps to arrange on an album page.

Which of the following is NOT a possible arrays Brad can make with the stamps?

• 2 X 21

• 3 X 14

• 6 X 7

• 6 X 8

Tags

CCSS.4.OA.B.4

Brad has 42 stamps to arrange on an album page.

How many possible arrays can Brad make with the 42 stamps?

Tags

CCSS.2.OA.C.4

What are all of the factors of 42?

• 1, 2, 6, 7, 21, 42

• 1, 2, 4, 6, 7, 12, 21, 42

• 1, 2, 3, 6, 7, 14, 21, 42

• 1, 2, 3, 4, 6, 7, 12, 14, 21, 42

Tags

CCSS.4.OA.B.4

How many factors are there for 42?

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CCSS.4.OA.B.4

What do you notice about the number of factors of 42 and the number of arrays Brad can make with the stamps?

• The number of factors is 1 less than the number of arrays.

• The number of factors is 2 less than the number of arrays.

• The number of factors is 2 more than the number of arrays.

• The number of factors is the same as the number of arrays.

Tags

CCSS.4.OA.B.4

Which of the following is NOT a factor pair for 42?

• 1 and 42

• 3 and 14

• 2 and 21

• 5 and 9

• 6 and 7

Tags

CCSS.4.OA.B.4

Which of the following statements is true?

• Forty-two is a prime number because prime numbers have exactly one factor pair.

• Forty-two is a prime number because prime numbers have more than one factor pair.

• Forty-two is a composite number because composite numbers have exactly one factor pair.

• Forty-two is a composite number because composite numbers have more than one factor pair.

Tags

CCSS.4.OA.B.4

Which of the following is a list of multiples for the number 8?

• 1, 8

• 2, 4, 8

• 8, 16, 32, 64

• 1, 2, 4, 8

Which statement is true?

• The only factors of 4 are 4 and 1.

• The only factors of 6 are 6 and 1.

• The only factors of 7 are 7 and 1.

• The only factors of 9 are 9 and 1.

Tags

CCSS.4.OA.B.4

Which of the following is a PRIME number?

• 6

• 7

• 4

• 9

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CCSS.4.OA.B.4