Addition and Subtraction Equations

Solve

 $y+1.34=4.7$  

•  $y=6.04$  

•  $y=1.81$  

•  $y=3.46$  

•  $y=3.36$  

Tags

CCSS.6.EE.B.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

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

What does "inverse" mean?

• Same as

• Opposite

Tags

CCSS.RI.4.10

CCSS.RI.5.10

CCSS.RI.6.4

CCSS.RI.7.4

CCSS.RI.8.4

What is the main goal in solving equations?

• Isolate the coefficient

• Isolate the constant

• Isolate the variable

• Isolate the equals sign

Tags

CCSS.6.EE.B.7

What equation matches this situation?

Jack had some markers and then bought 6 more. Now he has a total of 10 markers.

• $m-6=10$

• $m+6=10$

• $10-6=m$

• Answer not Given

Tags

CCSS.HSA.CED.A.3

Why do you add 7 to both sides?

• To undo addition, you subtract.

• To balance the equation, you subtract 7 on both sides.

• To undo subtraction, you add.

• To balance the equation,you add 7 to both sides.

Tags

CCSS.6.EE.B.7

What is the inverse operation needed to solve for p?

 $54=p+36.8$  

• subtraction

• addition

• multiplication

• division 

Tags

CCSS.6.EE.B.7