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