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Curipod lesson about topic "2 digit by 2 digit addition"

Updated 2 months ago

1. Word cloud

120 seconds

What is 6 + 7?

2. Slide

60 seconds

2 digit by 2 digit addition is a mathematical operation that involves two numbers with two digits each. The result of the addition will be a number with three or four digits. It involves regrouping, carrying and borrowing numbers.

2 Digit by 2 Digit Addition

3. Slide

60 seconds

Regrouping: The process of exchanging units in a number for more tens or hundreds. Carrying: A process where the number of tens or hundreds from one column is added to the next column. Borrowing: The process of exchanging units from one column to another column in order to subtract.

Concepts:

4. Slide

60 seconds

2 digit by 2 digit addition has been around for centuries. The ancient Egyptians used this type of addition in their math calculations. The most common use of 2 digit by 2 digit addition is in everyday banking transactions!

Fun facts:

5. Open question

660 seconds

Work together in pairs: Describe how you felt when you solved the 2 digit by 2 digit addition problems. Explain what strategies you used and why.

6. Open question

660 seconds

Work together in pairs: What was the most difficult part about solving 2 digit by 2 digit addition problems?

7. Drawings

450 seconds

Brain break: Draw a picture of a robot that is a firefighter, and it's riding a unicycle!

8. Poll

300 seconds

9. Slide

300 seconds

Add the numbers in the ones column Carry any 10's Add the numbers in the 10s column.

Adding 2 digit numbers

10. Drawings

450 seconds

Solve 15 + 21 =

11. Drawings

450 seconds

Solve 28+ 12=

12. Drawings

450 seconds

Solve 43+ 15 =

13. Open question

210 seconds

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