Addition and Subtraction

Front

What is the result of adding two numbers together called?

Back

The result of adding two numbers together is called the sum.

Front

What is the result of subtracting one number from another called?

Back

The result of subtracting one number from another is called the difference.

Front

What is the sum of 47 and 16?

Back

The sum of 47 and 16 is 63.

Front

What is the difference when 92 is subtracted from 89?

Back

The difference when 92 is subtracted from 89 is 3.

Front

What is the sum of 91 and 33?

Back

The sum of 91 and 33 is 124.

Front

What is the difference when 62 is subtracted from 23?

Back

The difference when 62 is subtracted from 23 is 39.

Front

What is the sum of 23 and 48?

Back

The sum of 23 and 48 is 71.

Front

How do you check if your addition is correct?

Back

You can check if your addition is correct by reversing the operation and subtracting one of the addends from the sum.

Front

How do you check if your subtraction is correct?

Back

You can check if your subtraction is correct by adding the difference to the subtracted number to see if you get the original number.

Front

What is a common strategy for adding larger numbers?

Back

A common strategy for adding larger numbers is to break them down into smaller, more manageable parts (e.g., using place value).