Order of operations and expressions

 $(5-3)^2+(6-2\cdot4)$  

• 20

• 12

• 2

• -6

Tags

CCSS.6.EE.A.2C

Simplify the following:

(2 + 7 - 1) ÷ 2²

• 16

• 2

• 72.25

• 8.75

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Find and explain the error

Step 1: $\left(10-8\div2\right)+6$  

Step 2:  $\left(2\div2\right)+6$  

Step 3: $1+6$  

Step 4: $7$  

• Division error

• Subtraction was done first when division should have been done first

• Division was done first when subtraction should have been done first

• Subtraction error

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

 $(4-4\cdot3+3^2)\ -(2)^3$  

• -7

• 1

• -8

• -10

Tags

CCSS.7.EE.B.3

Evaluate the expression

 $2a-4b+3c$  

when  $a=3,\ b=2,\ and\ c=1$  

• -3

• 18

• 1

• -1

Tags

CCSS.6.EE.A.2C

Simplify:  $\frac{2+5\cdot6}{12+2^2}$  

• 4

• 8

• 16

• 2

Tags

CCSS.6.EE.A.1

Evaluate the expression given that
m = 10 and n = - 3.

 $\frac{1}{2}m+6n+\sqrt{m+6}$  

• 9

•  $-9$  

• 17

•  $-11$  

Tags

CCSS.6.EE.A.2C

What is 4 × 4 × 4 × 4 × 4 written using an exponent?

• 1,024

• $4^5$

• 5 x 4

• $5^4$

Tags

CCSS.6.EE.A.1

The volume of a certain cube can be found using the expression 8³. What is 8³ written as a product of the same factor?

• 8 x 8 x8

• 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3

• 3 x 8

• 8 x 3

6² + 3

• 15

• 16

• 39

• 42

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5