adding and subtracting 3 digit numbers regrouping

Front

What is regrouping in addition and subtraction?

Back

Regrouping is the process of carrying over or borrowing numbers when the sum or difference of digits exceeds the value of a single digit (0-9).

Front

How do you add three-digit numbers?

Back

To add three-digit numbers, align the numbers by place value (hundreds, tens, units), add each column starting from the right, and regroup if necessary.

Front

What is the process of subtracting three-digit numbers?

Back

To subtract three-digit numbers, align the numbers by place value, subtract each column starting from the right, and regroup if the top digit is smaller than the bottom digit.

Front

What is the sum of 736 and 156?

Back

The sum of 736 and 156 is 892.

Front

What is the difference between 834 and 627?

Back

The difference between 834 and 627 is 207.

Front

How do you handle carrying over in addition?

Back

When the sum of a column exceeds 9, write down the rightmost digit and carry over the left digit to the next column.

Front

How do you handle borrowing in subtraction?

Back

When the top digit is smaller than the bottom digit in a column, borrow 1 from the next left column, reducing it by 1 and adding 10 to the current column.

Front

What is the result of 826 + 817?

Back

The result of 826 + 817 is 1,643.

Front

What is the result of 653 - 419?

Back

The result of 653 - 419 is 234.

Front

What is the importance of place value in addition and subtraction?

Back

Place value is crucial as it determines the value of each digit in a number, ensuring accurate addition and subtraction.