Unit 2 Prime Factorization and Order of Operations

Which is equivalent to 7 x 7 x 7 x 7 x 7 x 7 
?

• 7⁵
• 7⁶
• 6⁷
• 7⁷

Tags

CCSS.6.EE.A.1

A prime number

• has one factor
• has more than 2 factors
• has 100 factors
• has exactly 2 factors: 1 and the number

All of these are prime except

• 3
• 9
• 2
• 13

Tags

CCSS.4.OA.B.4

Use a number tree to find the prime factorization of 72

• 2x2x2x3x3
• 4x3x3x2
• 4x2x2x2x2

Using a Factor Tree, find the prime factorization of 54.

• 3² x 6
• 3³ x 2
• 2³ x 3
• 9 x 6

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.4

A scientist reports that a bacteria culture contains 3⁴ bacteria.
How many bacteria is that?

• 12
• 81
• 7
• 95

Tags

CCSS.1.OA.A.1

How many factors do prime numbers have?

• None

• 2; 1 and itself

• 3 or more

• Unlimited

Which operation is performed first in the following expression? $\left(12+10\right)\div10\times14-6$  

• Division

• Addition

• Multiplication

• Subtraction

Which operation is performed second in the following expression? $38+\left(9\times6\right)\div3-1$  

• Division

• Addition

• Multiplication

• Subtraction

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

What is the rule for solving multiplication or division using order of operations?

• left to right

• right to left

• multiplication then division