Three-Digit Subtraction

Front

What is the process of subtraction?

Back

Subtraction is the mathematical operation of finding the difference between two numbers, where one number (the subtrahend) is taken away from another number (the minuend).

Front

What is a three-digit number?

Back

A three-digit number is a number that has three digits, ranging from 100 to 999.

Front

How do you align numbers for subtraction?

Back

When subtracting multi-digit numbers, align the numbers by their rightmost digits (units) in columns, ensuring that each digit is in the correct place value (hundreds, tens, units).

Front

What is borrowing in subtraction?

Back

Borrowing is a technique used in subtraction when the digit in the minuend is smaller than the corresponding digit in the subtrahend. You 'borrow' from the next left column to make the subtraction possible.

Front

What is the difference between minuend and subtrahend?

Back

The minuend is the number from which another number (the subtrahend) is subtracted.

Front

What is the result of a subtraction called?

Back

The result of a subtraction operation is called the difference.

Front

How do you subtract two three-digit numbers?

Back

To subtract two three-digit numbers, align them by place value, subtract starting from the rightmost digit, and apply borrowing if necessary.

Front

What is the importance of place value in subtraction?

Back

Place value is crucial in subtraction as it determines the value of each digit in a number, ensuring accurate calculations.

Front

What is a common mistake when subtracting three-digit numbers?

Back

A common mistake is failing to borrow correctly when the minuend digit is smaller than the subtrahend digit in a given column.

Front

How can you check your subtraction work?

Back

You can check your subtraction by adding the difference to the subtrahend; if the sum equals the minuend, your subtraction is correct.