Double Digit Addition Flashcard

Front

What is double digit addition?

Back

Double digit addition is the process of adding two numbers that each have two digits, such as 45 + 78.

Front

What is the sum of 45 and 78?

Back

123

Front

What is the sum of 61 and 32?

Back

93

Front

What is the sum of 66 and 95?

Back

161

Front

What is the sum of 83 and 35?

Back

118

Front

What is the sum of 22 and 45?

Back

67

Front

How do you add two double digit numbers?

Back

Align the numbers by place value (tens and ones), add the ones, carry over if needed, then add the tens.

Front

What do you do if the sum of the ones is 10 or more?

Back

You carry over 1 to the tens place.

Front

What is carrying in addition?

Back

Carrying is when you move a value from one column to the next when the sum exceeds the base value (like 10 in base 10).

Front

What is a place value?

Back

Place value is the value of a digit based on its position in a number, such as tens or ones.