Adding Two Digit Numbers 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 the sum of 34 and 8?

Back

The sum of 34 and 8 is 42.

Front

Do you need to regroup when adding 34 and 54?

Back

Yes, you need to regroup because the sum of the ones place (4 + 4) is 8, and the sum of the tens place (3 + 5) is 8, which does not require regrouping.

Front

What is the sum of 51 and 46?

Back

The sum of 51 and 46 is 97.

Front

What is the sum of 73 and 19?

Back

The sum of 73 and 19 is 92.

Front

What is the sum of 9, 1, and 8?

Back

The sum of 9, 1, and 8 is 18.

Front

When do you need to regroup in addition?

Back

You need to regroup in addition when the sum of the digits in any column exceeds 9.

Front

What is the first step in adding two-digit numbers?

Back

The first step is to align the numbers by their place values (tens and ones) before adding.

Front

How do you add two-digit numbers without regrouping?

Back

You simply add the digits in each column without carrying over any values.

Front

What is the importance of place value in addition?

Back

Place value is important in addition because it determines the value of each digit based on its position in the number.