Three Digit Subtraction

Front

What is three-digit subtraction?

Back

Three-digit subtraction is the process of subtracting a number that has three digits from another three-digit number.

Front

What is the first step in three-digit subtraction?

Back

The first step is to line up the numbers by their place values: hundreds, tens, and ones.

Front

How do you subtract in the ones place?

Back

Subtract the bottom number from the top number in the ones place. If the top number is smaller, you need to borrow from the tens place.

Front

What does it mean to borrow in subtraction?

Back

Borrowing means taking 1 from the next higher place value to help subtract when the top number is smaller than the bottom number.

Front

If you have 9 in the ones place and need to subtract 5, what is the answer?

Back

The answer is 4.

Front

If you have 10 in the ones place and need to subtract 7, what do you do?

Back

You borrow 1 from the tens place, making it 9 in the tens place and 10 in the ones place. Then subtract 7 from 10, which equals 3.

Front

What is the second step in three-digit subtraction?

Back

The second step is to subtract the numbers in the tens place after handling any borrowing.

Front

If you have 5 in the tens place and need to subtract 3, what is the answer?

Back

The answer is 2.

Front

What is the last step in three-digit subtraction?

Back

The last step is to subtract the numbers in the hundreds place.

Front

If you have 6 in the hundreds place and need to subtract 2, what is the answer?

Back

The answer is 4.