Double Digit Addition

Front

What is double digit addition?

Back

Adding two numbers that each have two digits, like 23 + 45.

Front

What is the place value of the number 34?

Back

3 is in the tens place and 4 is in the ones place.

Front

How do you add the tens place in double digit addition?

Back

Add the numbers in the tens place together.

Front

How do you add the ones place in double digit addition?

Back

Add the numbers in the ones place together.

Front

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

Back

You carry over 1 to the tens place.

Front

What is the sum of 23 and 45?

Back

68.

Front

What is the sum of 12 and 25?

Back

37.

Front

What is the sum of 34 and 16?

Back

50.

Front

What is the sum of 21 and 19?

Back

40.

Front

What is the sum of 30 and 25?

Back

55.