[CHS] Order of Operations and Expressions

Simplify

 $8-2\cdot3$  

• -1

• 2

• 18

• -4

Tags

CCSS.7.NS.A.3

 $(5-3)^2+(6-2\cdot4)$  

• 20

• 12

• 2

• -6

Tags

CCSS.6.EE.A.2C

 $(4-4\cdot3+3^2)\ -(2)^3$  

• -7

• 1

• -8

• -10

Tags

CCSS.7.EE.B.3

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

What does the M in GEMS stand for?

• Mathematics

• Multiplication and Division (from left to right)

• Multiplication

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Combine like terms

 $2x+4y-x+3y$  

•  $6x+2y$  

•  $3x+7y$  

•  $x-y$  

•  $x+7y$  

Tags

CCSS.7.EE.A.1

Combine like terms

 $5x-3y+7-4x+2$  

•  $9x-3y+5$  

•  $9x-3y+9$  

•  $x-3y+9$  

•  $x-3y+5$  

Tags

CCSS.7.EE.A.1

Combine like terms

 $2\left(x-2y\right)+5y$  

•  $2x+y$  

•  $2x-3y$  

•  $2x+3y$  

•  $2x+9y$  

Tags

CCSS.7.EE.A.1

Write an expression for:

The sum of triple a number and 6

•  $3x+18$  

•  $3x+3$  

•  $x+3$  

•  $3x+6$  

Tags

CCSS.6.EE.A.2A

Evaluate the expression

 $2a-4b+3c$  

when  $a=3,\ b=2,\ and\ c=1$  

• -3

• 18

• 1

• -1

Tags

CCSS.6.EE.A.2C