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.