4 digit Subtraction with Regrouping (with zeros)

Regrouping in subtraction is the process of borrowing from the next higher place value when the top digit is smaller than the bottom digit in a column.

When subtracting numbers with zeros, you may need to regroup from the next non-zero digit to the left to perform the subtraction.

1,209

14

88

6,102

6,509

Place value is crucial in subtraction as it determines how numbers are aligned and how regrouping is performed.

1. Align the numbers by place value. 2. Start subtracting from the rightmost column. 3. Regroup if necessary. 4. Write down the result.

You must regroup from the next column to the left, reducing that digit by one and increasing the current column's top digit by ten.