Equivalent Expressions Review

What is the prime factorization of 110?

• 5² ⋅ 11
• 2⁵ ⋅ 11
• 5 ⋅ 22
• 2 ⋅ 5 ⋅ 11

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

Which two expressions are equivalent?

• 9(6 + x)

  9⋅ 6 + 9 ⋅ x

• x + (8 ⋅ 9)

  (x + 8) ⋅ 9

• 8 ⋅ 6 ÷ x

  8 ⋅ x ÷ 6

• 6 ⋅ x + 3

  6 ⋅ ( x + 3)

Tags

CCSS.6.EE.A.4

What operation would you perform first:

24 ÷ ( 4 + 2) - 1 × 10

• 4 + 2

• 1 × 10

• 24 ÷ 4

• 2 − 1

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

What does the ( E ) in PEMDAS mean?

• experience

• exponents

• examples

• evidence

Tags

CCSS.7.EE.B.3

True or false:
Addition ALWAYS comes before subtraction.

• True
• False

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Which expression is equivalent to

 $18\ +\ 3\ \cdot\ 24$  

•  $2^2\ \cdot\ 3^2\ +\ 2^{3\ }\cdot\ 3^2$  

•  $2\ \cdot\ 3^2\ +\ 2^3\ \cdot\ 3^2$  

•  $2\ \cdot\ 3^{3\ }+\ 2^{3\ }\cdot\ 3^2$  

•  $2^2\ \cdot\ 3^{3\ }+\ 2^3\ \cdot\ 3^3$  

Tags

CCSS.6.EE.A.3

• 24

• 16

• 5

• 27

Tags

CCSS.7.EE.B.3

Frank had $65. He spent $2 per day for 7 days. Then he was given $9 to divide equally between himself and his 2 brothers. The following expression can be used to find the amount of money Frank had after that.

65 - 2 ⋅ 7 + 9 ÷ 3 .

Based on this expression, what is the amount of money Frank had remaining?

• $54

• $150

• $2

• $444

Tags

CCSS.7.NS.A.3

Which two expressions are equivalent?

• (10 - 6) ÷ y and 10 - (6 ÷ y)

• 4 + (3 ⋅ y) and (4 + 3) ⋅ y

• (18 ÷ y) + 10 and 10 + (y ÷ 18)

• 12 - (y ⋅ 2) and 12 - (2 ⋅ y)

Tags

CCSS.6.EE.A.4