Digit Regrouping Subtraction

In the next few minutes I am going to show you some amazing facts about digit regrouping subtraction in this math blog. By the end of this letter you will know exactly how you can teach your kids math subtraction with regrouping and subtraction borrowing.   As you know 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. Let us take one example as below: Example:      5 1 6 - 2 8 7

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 (6-7).   Here, we need to regrouping the number to make the top value larger. Regroup 1 tens into 10 ones, so that the 6 becomes 16. 16 ones – 7 ones = 9 ones. The 9 is placed below the line in the ones place column.   Next, subtract the tens.      The top tens place value becomes 0 after digit subtraction regrouping one tens from it.   Regroup 1 hundreds into 10 tens. 10 tens + 0 tens = 10 tens, 10 tens – 8 tens = 2 tens. Then, subtract the hundreds     The top hundreds place value becomes 4 after digit subtraction regrouping one tens from it.   4 hundreds – 2 hundreds = 2 hundreds   Now, I am sure your must have absolutely confident with this digit regrouping subtraction to solve the problem which is 516 – 287 and get the answer of 229. Find Out More Subtraction Worksheets At Kids Math Blog.