Addition and Subtraction with regrouping

Front

What is regrouping in addition?

Back

Regrouping in addition is the process of carrying over a value from one column to the next when the sum of a column exceeds 10.

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is the process of borrowing from the next column when the top number is smaller than the bottom number in a column.

Front

Solve: 457,984 + 23,654

Back

481,638

Front

Solve: 1,000,000 - 625,901

Back

374,099

Front

Solve: 236,732 + 43,298

Back

280,030

Front

Solve: 12,000,345 - 3,721,000

Back

8,279,345

Front

If you have 230 tickets sold on Friday and 56 more on Saturday, how many tickets were sold in total?

Back

516 tickets were sold.

Front

What is the first step in adding two large numbers?

Back

Align the numbers by their place values (ones, tens, hundreds, etc.).

Front

What do you do if the sum of a column is greater than 9?

Back

You write down the rightmost digit and carry over the leftmost digit to the next column.

Front

What do you do if you need to subtract a larger digit from a smaller digit in a column?

Back

You borrow 1 from the next column to the left.