Subtraction Problems with Regrouping

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another. It shows how much is left after removing a part.

Front

What does regrouping mean in subtraction?

Back

Regrouping in subtraction is when you rearrange numbers to make it easier to subtract, especially when the top number is smaller than the bottom number in a column.

Front

Calculate the difference: 663 - 421.

Back

242

Front

Calculate the difference: 500 - 257.

Back

243

Front

Calculate the difference: 942 - 290.

Back

652

Front

Calculate the difference: 519 - 518.

Back

1

Front

Calculate the difference: 519 - 290.

Back

229

Front

What is the first step in solving a subtraction problem with regrouping?

Back

The first step is to line up the numbers by their place values (ones, tens, hundreds) and check if you need to regroup.

Front

Why do we need to regroup when subtracting?

Back

We need to regroup when the top digit is smaller than the bottom digit in any column, so we can borrow from the next higher place value.

Front

What is borrowing in subtraction?

Back

Borrowing is when you take 1 from the next column to help subtract a smaller number from a larger number in the current column.