Teaching Double Digit Subtraction With Regrouping

If you’d like to tutor your kids math in subtraction, and learn the secrets to subtraction with regrouping and subtraction without borrowing, then this teaching double digit subtraction with regrouping might be the first step towards helping your kids to achieve a+ in math subtraction.   Each digit of a number in our number system has a different place value (ones, tens, hundreds, thousands, etc) Always subtract within the same place value column when subtracting numbers. Subtraction is to find the difference. Now, let us take one simple example with double digit numbers.  Example:

Step 1 Write the problem in the columns.      Step 2 First, subtract the ones    Subtract the bottom ones place digit from the top ones place digit (2 – 8).  Here, regrouping the number to make the top value larger.   Regroup 1 tens into 10 ones, so that the 2 becomes 12. Then 12 ones – 8 ones = 4 ones. The 4 is placed below the line in the ones place column.                             Next, subtract the tens.   The top tens place value becomes 6 after practicing subtraction with regrouping one tens from it.  6 tens – 4 tens = 2 tens.    You will get the answer of 24 with this math tutoring teaching double digit subtraction with regrouping.

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