Chapter 2: Multiplying Whole Numbers Check In

What is a prime number?

Tags

CCSS.4.OA.B.4

Check all of the prime numbers, numbers with only 2 factors (1 and itself).

• 5

• 13

• 25

• 33

• 47

Tags

CCSS.4.OA.B.4

What is a composite number?

Tags

CCSS.4.OA.B.4

Check all of the composite numbers, numbers with more than 2 factors (more than 1 and itself).

• 8

• 15

• 23

• 31

• 44

Tags

CCSS.4.OA.B.4

True or False: Prime factorization is a way of expressing a composite number as a product of its prime factors.

• True

• False

Make a factor tree. What is the prime factorization of 36?

• 1 x 36

• 9 x 4

• 3 x 3 x 4

• 2 x 2 x 3 x 3

Make a factor tree. What is the prime factorization of 28?

• 1 x 28

• 2 x 2 x 7

• 4 x 7

• 2 x 2 x 2 x 7

The base number of 10³ is (a)   .

Tags

CCSS.2.NBT.A.3

The exponent of 5⁸ is (a)   .

Tags

CCSS.6.EE.A.1

5³ = ?

• 5 + 5 + 5

• 3 + 3 + 3 + 3 + 3

• 5 x 5 x 5

• 3 x 3 x 3 x 3 x 3