Subtraction with Regrouping

Front

What is subtraction with regrouping?

Back

Subtraction with regrouping is a method used to subtract numbers when the top digit is smaller than the bottom digit in any column, requiring us to borrow from the next column.

Tags

CCSS.7.NS.A.1C

Front

How do you borrow in subtraction?

Back

To borrow, you take 1 from the next left column, reducing it by 1, and add 10 to the current column.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the first step in solving 182 - 56?

Back

Line up the numbers by place value: 182 on top and 56 below it.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What do you do if the top digit is smaller than the bottom digit?

Back

You need to borrow from the next column to the left.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

Solve: 182 - 56 = ?

Back

126

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

Solve: 62 - 39 = ?

Back

23

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the result of 338 - 274?

Back

64

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the result of 178 - 49?

Back

129

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

Solve: 812 - 356 = ?

Back

456

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the importance of lining up numbers by place value in subtraction?

Back

It ensures that you subtract the correct digits from each other.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7