• Solving 1-step word problems involving addition and subtraction
What will we learn today?
Whole Numbers
Addition and Subtraction
Here’s an example.
You have 2 toy cars. I give you 3 more toy cars. How many toy cars do you have now?
Here’s an example.
+ =
You have 2 toy cars. I give you 3 more toy cars. How many toy cars do you have now?
Here’s an example.
+ =2 + 3 = 5
You have 2 toy cars. I give you 3 more toy cars. How many toy cars do you have now?
3 more than 2 is 5.You have 5 toy cars now.
Here’s an example.
+ =2 + 3 = 5
Here’s another example.
By using the count-on method, you can easily find the answers
Here’s another example.
By using the count-on method, you can easily find the answers
5 squares
Here’s another example.
By using the count-on method, you can easily find the answers
5 squares
Here’s another example.
By using the count-on method, you can easily find the answers
5 squares
+1
6
Here’s another example.
By using the count-on method, you can easily find the answers
5 squares
+1+1
6 7
Here’s another example.
By using the count-on method, you can easily find the answers
5 squares
+1+1+1
6 7 8
Here’s another example.
By using the count-on method, you can easily find the answers
5 squares
5 + 3 = 8
Let’s try another question together.
Jimmy has 13 books. His brother gives him 6 more books. How many books did Jimmy have now?
Let’s try another question together.
13
Jimmy has 13 books. His brother gives him 6 more books. How many books did Jimmy have now?
Let’s try another question together.
13
+1
1415 Using count-on method
Jimmy has 13 books. His brother gives him 6 more books. How many books did Jimmy have now?
Let’s try another question together.
13
+1+1
141516 Using count-on method
Jimmy has 13 books. His brother gives him 6 more books. How many books did Jimmy have now?
Let’s try another question together.
13
+1+1+1
14151617 Using count-on method
Jimmy has 13 books. His brother gives him 6 more books. How many books did Jimmy have now?
Let’s try another question together.
13
+1+1+1
1415161718
+1
Using count-on method
Jimmy has 13 books. His brother gives him 6 more books. How many books did Jimmy have now?
Let’s try another question together.
13
+1+1+1
141516171819
+1+1
Using count-on method
Jimmy has 13 books. His brother gives him 6 more books. How many books did Jimmy have now?
Let’s try another question together.
13
+1+1+1
141516171819
+1+1
Using count-on method
Answer: 19
Are you ready to try out the questions?