• 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?