3 Digit Subtraction

Front

What is 3-digit subtraction?

Back

3-digit subtraction is the process of subtracting one 3-digit number from another 3-digit number.

Front

What is the first step in 3-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 digits in the ones place. If the top digit 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 left place value to help subtract a smaller digit.

Front

What is the result of 456 - 123?

Back

456 - 123 = 333.

Front

How do you subtract in the tens place?

Back

Subtract the digits in the tens place. If you borrowed, remember to subtract 1 from the top digit.

Front

What is the result of 700 - 250?

Back

700 - 250 = 450.

Front

What is regrouping in subtraction?

Back

Regrouping is another term for borrowing, used when a digit in the top number is smaller than the digit in the bottom number.

Front

What is the result of 582 - 274?

Back

582 - 274 = 308.

Front

What do you do if you can't subtract in the hundreds place?

Back

If you can't subtract in the hundreds place, you may need to borrow from the thousands place, if applicable.