Three digit subtraction with regrouping

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is when you borrow from the next higher place value to help subtract when the top digit is smaller than the bottom digit.

Tags

CCSS.7.NS.A.1C

Front

What is the first step in three-digit subtraction with regrouping?

Back

The first step is to line up the numbers by place value (hundreds, tens, and ones).

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you subtract in the ones place if the top number is smaller than the bottom number?

Back

You need to regroup by borrowing 1 from the tens place.

Tags

CCSS.2.NBT.B.7

Front

What does it mean to borrow 1 from the tens place?

Back

It means you take 1 ten (which is 10) from the tens place and add it to the ones place, making the ones place larger.

Tags

CCSS.2.NBT.B.7

Front

If you have 7 in the ones place and need to subtract 9, what do you do?

Back

You regroup by borrowing from the tens place, making it 17 in the ones place.

Tags

CCSS.5.NBT.B.7

Front

What is the result of 647 - 429?

Back

The result is 218.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the result of 549 - 372?

Back

The result is 177.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the result of 896 - 573?

Back

The result is 323.

Front

What is the result of 939 - 587?

Back

The result is 352.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What do you do after subtracting the ones place?

Back

After subtracting the ones place, move to the tens place and subtract, remembering to regroup if necessary.

Tags

CCSS.2.NBT.B.7