Adding Two-Digit Numbers Using Place Value

This lesson teaches how to add up to four two-digit numbers using price value. It begins with a review of price value concepts, explaining how numbers can be represented in different ways. The lesson then provides examples of calculating the total cost of supplies for pets like dogs, fish, and hamsters by breaking down the addition process into tens and ones. The video emphasizes that numbers can be added in any order to achieve the same sum, addressing common misunderstandings. By the end, students will understand how to use price value to simplify addition.

What does the digit '2' represent in the number 267?

• 200

• 2000

• 20

• 2

Which of the following is equivalent to 3 tens and 2 ones?

• 12

• 30

• 23

• 32

What is the total cost of the dog supplies?

• $134

• $154

• $144

• $120

How do you rearrange the addends to simplify the addition of 9, 7, 5, and 3?

• 9 + 3 and 7 + 5

• 9 + 5 and 7 + 3

• 9 + 7 and 5 + 5

• 9 + 7 and 5 + 3

What is the total cost of the fish supplies?

• $154

• $144

• $140

• $164

What is the sum of the tens in the hamster supplies cost calculation?

• 50

• 40

• 20

• 30

What is the total cost of the hamster supplies?

• $51

• $71

• $41

• $61