Write/ Solve Addition and Subtraction Equations

What is the inverse operation of addition?

• Addition

• Subtraction

• Multipication

• Division

Tags

CCSS.2.NBT.B.5

What is the inverse operation of subtraction?

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.2.NBT.B.5

Solve

 $y+1.34=4.7$  

•  $y=6.04$  

•  $y=1.81$  

•  $y=3.46$  

•  $y=3.36$  

Tags

CCSS.6.EE.B.7

 $x-9=15$  

•  $x=6$  
  

•  $x=16$  
  

•  $x=23$  

•  $x=24$  

Tags

CCSS.6.EE.B.7

Solve

 $17=y-20$  

•  $y=3$  

•  $y=37$  

•  $y=-23$  
  

•  $y=-37$  

Tags

CCSS.6.EE.B.7

Write as an equation: a number b increased by 3 is 7

• b - 3 = 7

• b + 3 = 7

• 7b = 3

• 3b = 7

Together Alex and Lilly have 12 cats. If Alex has 3, write an equation to find out how many cats Lilly has.

•  $12-3$  

•  $x-3=12$  

•  $x+3=12$  

•  $x=9$  
  

Tags

CCSS.HSA.CED.A.3

Erica is 4 years old. This is 12 years younger than her sister Jessica. Write an equation to find Jessica's age.

• $12+4$
  

• $12-x=4$

• $x-12=4$

• $x+12=4$
  

Tags

CCSS.HSA.CED.A.3

Solve for a using the equation: a + 3.5 = 10

• a = 6.5

• a = 13.5

• a = 3.5

• a = 44

Tags

CCSS.6.EE.B.7

Which choice models this situation?
Robyn had some video games, then bought 4 more.  Now she has a total of 10 games.

• v - 4 = 10
• v + 4 = 10
• 10/4 = v
• 4v = 10

Tags

CCSS.HSA.CED.A.3