3 Digit Subtraction with Regrouping Challenge

Mrs. Afiero teaches how to subtract three-digit numbers using the regrouping strategy. She provides three examples, demonstrating how to handle cases where regrouping is needed, including a special trick for when the tens place is zero. The video emphasizes starting from the ones place and moving left, ensuring students understand the process of borrowing from higher place values.

What is the first step in the regrouping strategy for subtracting three-digit numbers?

• Start in the hundreds place

• Start in the tens place

• Start in the ones place

• Start in the thousands place

In the problem 651 minus 429, what do you do when you cannot subtract 9 from 1 in the ones place?

• Add 10 to the ones place

• Subtract 1 from the hundreds place

• Regroup from the tens place

• Flip the digits

After regrouping in the problem 651 minus 429, what is 11 minus 9?

• 4

• 3

• 1

• 2

In the problem 836 minus 592, what do you do when you cannot subtract 9 from 3 in the tens place?

• Add 10 to the tens place

• Regroup from the hundreds place

• Regroup from the ones place

• Flip the digits

What is the result of 13 minus 9 in the problem 836 minus 592?

• 3

• 2

• 4

• 5

In the problem 836 minus 592, what is the final difference?

• 248

• 252

• 244

• 242

When subtracting with a zero in the tens place, what trick can you use?

• Add 10 to the tens place

• Subtract 1 from the ones place

• Flip the digits

• Think of the tens and hundreds digits together as one number

In the problem with a zero in the tens place, what is 12 minus 5?

• 6

• 7

• 8

• 9

What is the result of 9 minus 4 in the tens place when using the trick for a zero in the tens place?

• 3

• 4

• 5

• 6

What is the final difference in the problem with a zero in the tens place?

• 257

• 267

• 247

• 277