Backwards Doubles

Front

What is the result of subtracting a number from itself?

Back

The result is always 0.

Front

What is the relationship between subtraction and addition?

Back

Subtraction is the inverse operation of addition.

Front

If you have 24 and subtract 12, what is the result?

Back

12.

Front

What is the term for a number that is subtracted from another number?

Back

Minuend.

Front

What is the term for the number that is being subtracted?

Back

Subtrahend.

Front

What is the result of 20 - 10?

Back

10.

Front

How can you check your subtraction answer?

Back

You can add the result to the subtrahend to see if it equals the minuend.

Front

What is the result of 14 - 7?

Back

7.

Front

What is the result of 6 - 3?

Back

3.

Front

What is the concept of 'backwards doubles' in subtraction?

Back

It refers to the idea that if you double the subtrahend, you can find the minuend by adding the result to the subtrahend.