Double Digit Addition

Front

What is double digit addition?

Back

Double digit addition refers to the process of adding two numbers that each have two digits, resulting in a sum that can be either two or three digits.

Front

How do you add two double digit numbers?

Back

To add two double digit numbers, align the numbers by their place values (tens and units), add the units first, carry over if necessary, and then add the tens.

Front

What is the sum of 38 and 42?

Back

The sum of 38 and 42 is 80.

Front

What is the sum of 59 and 25?

Back

The sum of 59 and 25 is 84.

Front

What is the sum of 65 and 27?

Back

The sum of 65 and 27 is 92.

Front

What is the sum of 53 and 29?

Back

The sum of 53 and 29 is 82.

Front

What is the sum of 78 and 17?

Back

The sum of 78 and 17 is 95.

Front

What is carrying in addition?

Back

Carrying in addition is the process of moving a value from one column to the next when the sum of that column exceeds 9.

Front

What is the importance of place value in addition?

Back

Place value is important in addition because it helps to correctly align numbers and ensures that each digit is added in the correct column.

Front

What is a common mistake in double digit addition?

Back

A common mistake in double digit addition is misaligning the numbers or forgetting to carry over when the sum exceeds 9.