Adding and Subtracting 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

What is the sum of 24 and 67?

Back

The sum of 24 and 67 is 91.

Front

What is the sum of 509 and 134?

Back

The sum of 509 and 134 is 643.

Front

What do you do when you add two numbers and the sum is greater than 10?

Back

You regroup by carrying over to the next column.

Front

What do you do when you subtract and the top number is smaller than the bottom number?

Back

You regroup by borrowing from the next column.

Front

What is 730 minus 405?

Back

The result of 730 minus 405 is 325.

Front

What is 474 minus 275?

Back

The result of 474 minus 275 is 199.

Front

If you have 8 + 5, what do you do?

Back

You add 8 and 5 to get 13, and since it's greater than 10, you regroup.

Front

What is the first step in adding 509 and 134?

Back

Align the numbers by place value (ones, tens, hundreds).