3-Digit Addition with Regrouping

Front

What is 3-digit addition with regrouping?

Back

3-digit addition with regrouping is the process of adding numbers that have three digits, where the sum of any column exceeds 9, requiring carrying over to the next column.

Front

What is the first step in adding two 3-digit numbers?

Back

The first step is to align the numbers by their place values (hundreds, tens, and units) and start adding from the rightmost column.

Front

How do you handle a sum greater than 9 in a column during addition?

Back

If the sum in a column is greater than 9, you write down the unit digit of the sum and carry over the ten to the next column.

Front

What is the sum of 987 and 654?

Back

The sum of 987 and 654 is 1641.

Front

What is the sum of 245 and 378?

Back

The sum of 245 and 378 is 623.

Front

How do you add the hundreds place in 3-digit addition?

Back

To add the hundreds place, sum the digits in the hundreds column and add any carry from the tens column.

Front

What is the total when 156 and 287 are added?

Back

The total when 156 and 287 are added is 443.

Front

What is the process of regrouping in addition?

Back

Regrouping in addition involves carrying over values from one column to the next when the sum exceeds 9.

Front

What is the sum of 321 and 456?

Back

The sum of 321 and 456 is 777.

Front

How do you check your work after performing 3-digit addition?

Back

To check your work, you can add the numbers again or use the inverse operation (subtraction) to verify the result.