Subtraction and Verification Techniques

The video tutorial covers three-digit subtraction, starting with aligning numbers using place value lines. It explains subtracting from the ones place, borrowing in the tens place, and subtracting in the hundreds place. The tutorial concludes with verifying the subtraction result by adding the two smaller numbers to check if they equal the original larger number.

What is the first step in setting up a three-digit subtraction problem?

• Multiply the numbers

• Add the numbers

• Subtract the hundreds place

• Draw place value lines

In the ones place, what is the result of 8 minus 4?

• 2

• 8

• 4

• 6

What should you do if you cannot subtract a larger digit from a smaller one in the tens place?

• Multiply the digits

• Borrow from the hundreds place

• Skip the subtraction

• Add instead of subtract

After borrowing, what is the new value in the tens place if you originally had 3 tens?

• 12 tens

• 11 tens

• 13 tens

• 10 tens

What is the final answer after completing the subtraction of 838 - 384?

• 404

• 434

• 484

• 454

What is the purpose of adding the two smaller numbers in the verification step?

• To check if they equal the original larger number

• To find a new subtraction problem

• To multiply the numbers

• To divide the numbers

What is the sum of the ones place during the verification step?

• 6

• 8

• 7

• 9

What should you do if the sum in the tens place is a double-digit number?

• Ignore the extra digit

• Carry over to the hundreds place

• Subtract the extra digit

• Multiply the digits

What is the final step in verifying the subtraction result?

• Divide the sum by the original number

• Check if the sum matches the original larger number

• Subtract the sum from the original number

• Multiply the sum by the original number