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UNIT 2
 
 
 
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UNIT 2 Addition and Subtraction Concepts and Facts to 10
 
 

  
Unit 2 Problem Solving Decision Making
  
Name ___________________________

Use Addition and Subtraction to Make Decisions
  
10 children play.

Each child gets a red or a yellow cap.

Color a cap for each child.  or

 
1.How many caps will you color? ____________caps
2.Plan how many caps of each color there will be.



 
3.How many caps of each color do you have?
________________________
4.Write an addition sentence about the caps.
____________+ ____________= ____________caps in all



Use  and  to color 10 caps.

 
5.Plan how many caps of each color there will be.


6.How many caps of each color do you have?
________________________

 
7.Subtract to find the difference between  and .
____________- ____________= more
8.What if you colored 1 fewer ?
What would the difference in caps be?
____________- ____________= more

  
Your child applied addition and subtraction to make decisions.
Activity:  Draw 9 dots. Ask your child to use two different colors of crayons to circle the dots to show a way to make 9. Have your child tell the matching addition sentence.

 

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