Adding 2-Digit Numbers Using Expanded Form

In this video, Mr. J explains how to add two-digit numbers using expanded form without regrouping. He provides two examples: adding 62 and 17, and adding 33 and 25. The video emphasizes the importance of understanding the value of each digit in the tens and ones places, and demonstrates how expanded form can deepen comprehension of addition. The video concludes with a vertical addition method to verify results.

Why is using expanded form beneficial for addition?

• It makes subtraction easier.

• It makes the numbers smaller.

• It helps in understanding the value of each digit.

• It is faster than other methods.

Tags

CCSS.2.NBT.B.7

What is the value of the digit 6 in the number 62?

• 6000

• 600

• 60

• 6

Tags

CCSS.4.NBT.A.1

What is the sum of the ones place in the example 62 + 17?

• 9

• 10

• 8

• 7

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the sum of the tens place in the example 62 + 17?

• 80

• 60

• 70

• 90

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the final sum of 62 + 17?

• 78

• 79

• 81

• 80

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the value of the digit 3 in the number 33?

• 3

• 3000

• 30

• 300

Tags

CCSS.4.NBT.A.1

What is the sum of the ones place in the example 33 + 25?

• 10

• 9

• 8

• 7

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the sum of the tens place in the example 33 + 25?

• 40

• 50

• 60

• 70

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the final sum of 33 + 25?

• 60

• 58

• 57

• 59

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

How does expanded form help in understanding addition?

• It is faster than other methods.

• It makes subtraction easier.

• It makes the numbers smaller.

• It helps in understanding the value of each digit.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2