Mastering 2-Digit Addition with Regrouping

The video tutorial covers the basics of single and double-digit addition, focusing on the concept of regrouping. The instructor, Mr. Jeff, explains the process of adding numbers, starting with single-digit examples and progressing to more complex double-digit problems. He emphasizes the importance of adding the ones first and then the tens, demonstrating how to carry over numbers when necessary. The tutorial includes several example problems to illustrate these concepts, encouraging students to practice and visualize numbers using dots. The video concludes with motivational remarks to keep math fun and engaging.

What is the sum of 5 and 4?

• 7

• 8

• 10

• 9

Tags

CCSS.1.OA.A.1

When adding 5 and 6, what is the result?

• 11

• 12

• 13

• 10

Tags

CCSS.1.OA.A.1

In double digit addition, what should you add first?

• Hundreds

• Ones

• Thousands

• Tens

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What is the sum of 15 and 6?

• 22

• 21

• 20

• 19

Tags

CCSS.1.OA.A.1

What is the result of 25 plus 18?

• 43

• 40

• 45

• 33

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

When adding 8 and 5, what is the sum?

• 12

• 13

• 14

• 15

Tags

CCSS.1.OA.A.1

What is the sum of 36 and 36?

• 71

• 73

• 70

• 72

Tags

CCSS.2.NBT.B.5

What is the result of adding 6 and 6?

• 10

• 13

• 11

• 12

Tags

CCSS.1.OA.A.1

What is the sum of 45 and 27?

• 71

• 70

• 73

• 72

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

When adding 7 and 5, what is the result?

• 13

• 11

• 14

• 12

Tags

CCSS.1.OA.A.1