Two-Digit Addition Strategies

The video tutorial on Miss House-Warming's channel focuses on teaching two-digit addition without regrouping using the expanded form strategy, also known as partial sums. The instructor demonstrates the process with an example problem, 24 plus 35, by setting it up vertically, expanding the numbers, and adding the ones and tens separately. The video emphasizes the importance of aligning place values and using placeholders for clarity. The tutorial concludes with the final calculation and writing the answer.

What is the main topic discussed in the video?

• Two-digit addition without regrouping

• Multiplication of two-digit numbers

• Two-digit subtraction with regrouping

• Division of two-digit numbers

Which strategy is used for two-digit addition in the video?

• Expanded form

• Borrowing

• Carrying over

• Long division

What is the first problem discussed in the video?

• 45 plus 67

• 24 plus 35

• 56 plus 78

• 12 plus 23

What is the first step in solving the problem 24 plus 35 using expanded form?

• Subtract the ones

• Expand the numbers into tens and ones

• Write the numbers horizontally

• Add the tens first

How are the numbers 24 and 35 expanded in the video?

• 24 and 35

• 20 plus 4 and 30 plus 5

• 200 plus 40 and 300 plus 50

• 2 plus 4 and 3 plus 5

Why is it important to align place values when adding?

• To ensure correct addition of ones and tens

• To avoid using placeholders

• To make subtraction easier

• To make the numbers look neat

What is the expanded form of 24?

• 2 plus 4

• 20 plus 4

• 24

• 200 plus 40

What is the expanded form of 35?

• 30 plus 5

• 300 plus 50

• 35

• 3 plus 5

What is the sum of the ones column in the problem 24 plus 35?

• 8

• 7

• 9

• 10

What is the purpose of using placeholders in expanded form?

• To make the numbers larger

• To help with alignment and clarity

• To make subtraction easier

• To avoid using the expanded form