Level 4 Subtraction Quiz

The video tutorial covers level 4 subtraction, focusing on borrowing techniques. It begins with an introduction to the concept, followed by several example problems that demonstrate how to handle borrowing when subtracting large numbers. The instructor explains the process step-by-step, ensuring that the top digits are larger than the bottom ones before performing subtraction. The tutorial concludes with a complex problem that requires borrowing from multiple places, reinforcing the borrowing method.

What is the main concept introduced in level 4 subtraction?

• Division

• Multiplication

• Borrowing

• Addition

In the first example, what is the result of 33,220 minus 399?

• 33,921

• 32,821

• 33,821

• 32,921

Why do we need to borrow in subtraction?

• To make subtraction faster

• To ensure the top digit is larger than the bottom digit

• To make the bottom number larger

• To make the top number smaller

In the second example, what is the result of 25,633 minus 578?

• 25,055

• 25,505

• 25,105

• 25,555

What happens when a digit in the top number is smaller than the digit below it?

• You borrow from the next left digit

• You subtract 1 from the bottom digit

• You skip the subtraction

• You add 1 to the top digit

In the third example, what is the result of 37,002 minus 155?

• 36,847

• 36,947

• 36,857

• 36,957

What is a key challenge in the third example problem?

• Borrowing from multiple places

• Adding numbers

• Multiplying numbers

• Dividing numbers

In the final example, what is the result of 3,201 minus 502?

• 2,999

• 2,899

• 2,799

• 2,699

What should you always remember to do first in level 4 subtraction?

• Divide the numbers

• Do the borrowing

• Multiply the numbers

• Add the numbers

What is the final step after ensuring all top digits are larger than the bottom digits?

• Perform the addition

• Perform the subtraction

• Perform the division

• Perform the multiplication