Some Regrouping- 3 by 3 digit Addition/Subtraction

Front

What is regrouping in addition and subtraction?

Back

Regrouping is the process of rearranging groups of ten or hundred in addition and subtraction to simplify calculations.

Front

How do you add three-digit numbers?

Back

To add three-digit numbers, align the numbers by place value (hundreds, tens, units), add starting from the rightmost column, and carry over if the sum exceeds 10.

Front

What is the sum of 501 and 803?

Back

The sum of 501 and 803 is 1,304.

Front

How do you subtract three-digit numbers?

Back

To subtract three-digit numbers, align the numbers by place value, subtract starting from the rightmost column, and borrow from the next column if necessary.

Front

What is the difference between 538 and 523?

Back

The difference between 538 and 523 is 15.

Front

What is the sum of 820 and 178?

Back

The sum of 820 and 178 is 998.

Front

What is the sum of 539 and 899?

Back

The sum of 539 and 899 is 1,438.

Front

What is the difference between 520 and 355?

Back

The difference between 520 and 355 is 165.

Front

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

Back

Place value is crucial in addition and subtraction as it determines the value of each digit based on its position, ensuring accurate calculations.

Front

What is carrying in addition?

Back

Carrying in addition is the process of transferring a value from one column to the next when the sum exceeds the base (10 in decimal).