1. Whole Numbers
Multiplication
What will we learn today?
• Multiplication as repeated
addition.

2. Here’s an example.

3. There are 4 boxes.
Each box has 3 balls.
3 + 3 +3 + 3 = 12

4. There are 4 boxes.
Each box has 3 balls.
3 + 3 +3 + 3 = 12

5. There are 4 boxes.
Each box has 3 balls.
3 + 3 +3 + 3 = 12
4 threes = 12

6. There are 4 boxes.
Each box has 3 balls.
3 + 3 +3 + 3 = 12
4 threes = 12
4 groups of 3 = 12

7. There are 4 boxes.
Each box has 3 balls.
3 + 3 +3 + 3 = 12
4 threes = 12
4 groups of 3 = 12
4 x 3 = 12

8. There are 4 boxes.
Each box has 3 balls.
3 + 3 +3 + 3 = 12
4 threes = 12
4 groups of 3 = 12
4 x 3 = 12
There are 12 balls altogether.

9. There are 4 boxes.
Each box has 3 balls.
4 x 3 = 12
There are 12 balls altogether.

10. There are 4 boxes.
Each box has 3 balls.
4 x 3 = 12
4 x 3 = 12 is a multiplication sentence.
We use “x” to represent „groups of‟.

11. Let’s try another question.

12. 3 + 3 + 3 + 3 + 3 + 3=__

13. 3 + 3 + 3 + 3 + 3 + 3=__
6 threes =__

14. 3 + 3 + 3 + 3 + 3 + 3=__
6 threes =__
6 groups of 3 =__

15. 6 groups of 3 =__
6 x 3 =__

17. 6 groups of 3 18

18. 6 groups of 3 18
2 groups of 2 4
2 groups of 3 6

19. 6 groups of 3 18
2 groups of 2 4
2 groups of 3 6

20. Are you ready to
try out the
questions?