Subtraction of 3-Digit Numbers with Regrouping Techniques

This video tutorial teaches how to subtract three-digit numbers with regrouping using base 10 blocks. The instructor provides step-by-step guidance through three examples: 452 minus 126, 324 minus 155, and 134 minus 86. Each example highlights the process of borrowing from the next place value when there is more on the floor than on the top. The tutorial emphasizes the importance of working from top to bottom and using visual aids like base 10 blocks to understand the concept of regrouping.

What is the first step when subtracting three-digit numbers with regrouping?

• Start with the ones place

• Start with the tens place

• Start with the hundreds place

• Start with the bottom number

If there is more on the floor in the ones place, what should you do?

• Add more ones

• Borrow from the hundreds place

• Skip the ones place

• Borrow from the tens place

How many ones do you need to draw when you borrow from the tens place?

• 15 ones

• 20 ones

• 10 ones

• 5 ones

After borrowing from the tens place, how many ones are left if you take away 6 ones from 10 ones?

• 8 ones

• 6 ones

• 4 ones

• 2 ones

In the problem 452 - 126, how many tens are left after borrowing and taking away 2 tens?

• 1 ten

• 2 tens

• 3 tens

• 4 tens

What is the final answer to the problem 452 - 126?

• 326

• 336

• 346

• 356

In the problem 324 - 155, what do you do if there is more on the floor in both the ones and tens places?

• Start with the hundreds place

• Add more tens

• Skip the problem

• Borrow from the hundreds place

How many tens are left after borrowing from the hundreds place and taking away 5 tens in the problem 324 - 155?

• 4 tens

• 3 tens

• 2 tens

• 1 ten

What is the final answer to the problem 324 - 155?

• 159

• 169

• 179

• 189

In the problem 134 - 86, what do you do if there is more on the floor in the ones place?

• Borrow from the tens place

• Borrow from the hundreds place

• Add more ones

• Skip the ones place