1. Open question

180 seconds

Why do we add tens when we can just add one by one?

2. Slide

60 seconds

Adding tens means adding 10 to a number. For example: 2 + 10 = 12 You can also add tens by counting up by 10.

Adding Tens

3. Slide

60 seconds

Addend: A number in an addition sentence. Sum: The answer to an addition sentence. Tens: A group of ten ones or a number in the tens place in a larger number.

Concepts:

4. Slide

60 seconds

The Roman numeral for ‘tens’ is “X”, which is also the symbol for the number 10 in mathematics.

Did you know?

5. Open question

180 seconds

What is the easiest way to add two tens?

6. Open question

180 seconds

Why is it important to be able to add tens?

7. Open question

300 seconds

What do you think is the best way to add tens?

8. Poll

60 seconds

What is the result of adding 10 to 10?

- 20
- 15
- 25
- 30

9. Poll

60 seconds

What is the result of adding 20 to 10?

- 30
- 25
- 15
- 20

10. Poll

60 seconds

What is the result of adding 30 to 10?

- 40
- 35
- 30
- 25

11. Poll

60 seconds

What is the result of adding 40 to 10?

- 50
- 45
- 40
- 35

12. Poll

60 seconds

What is the result of adding 50 to 10?

- 60
- 55
- 50
- 45

13. Drawings

450 seconds

Brain break: Create a drawing of a magical creature with at least 3 different colors and 3 different shapes. Include details such as eyes, ears, wings, and a tail. Have fun and be creative!

14. Drawings

360 seconds

Add 10 to 25

15. Drawings

180 seconds

Add 10 to 32

16. Drawings

180 seconds

Add 10 to 57

Made with ❤️ from Norway