What are all the factors of 20?

• 2, 4, 5, 10

• 1, 2, 4, 5, 10, 20

• 2, 10

• 20, 40, 60

Tags

CCSS.4.OA.B.4

What is a prime number?

• a number with ONLY two factors

• a number with LESS THAN two factors

• a number with ONLY one factor

• a number with MORE THAN two factors

Tags

CCSS.4.OA.B.4

What is a composite number?

• a number with ONLY TWO factors

• a number with LESS THAN TWO factors

• a number with MORE THAN TWO factors

• a number with ONLY ONE factor

Tags

CCSS.4.OA.B.4

Which list has only prime numbers?

• 2, 3, 4, 5
• 1, 5, 7, 9
• 2, 3, 5, 7
• 2, 4, 6, 8

Tags

CCSS.4.OA.B.4

Which choice lists all the factors for the number 24?

• 2, 3, 4, 6, 8, 12, 24
• 2, 3, 4, 6, 8, 12, 24, 36
• 1, 2, 3, 4, 6, 8, 12, 24
• 1, 2, 4, 5, 6, 8, 12 ,24

Tags

CCSS.4.OA.B.4

Which number below is NOT prime?

• 3
• 7
• 9
• 11

Tags

CCSS.4.OA.B.4

List the missing multiples for the number 6:

6, 12, 18, _____ 42, 48

• 28, 32, 36

• 27, 36, 45

• 24, 30, 36

• 20, 30, 36

Tags

CCSS.4.OA.B.4

List the missing multiples for 4

4, 8, _____ 24, 28

• 12, 16, 20

• 10, 20, 25

• 12, 15, 22

• none of these are correct

Tags

CCSS.4.OA.B.4

Is 17 a prime or composite number?

• Prime

• Composite

Answer explanation

Tags

CCSS.4.OA.B.4

What is the rule for the number pattern?

24, 36, 48, 60

• Add 12, then subtract 2

• Subtract 12

• Add 10, then subtract 2

• Add 12

Tags

CCSS.3.OA.D.9