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 in subtraction, you take 1 from the next left column, decrease that digit by 1, and add 10 to the current column's digit.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the result of 734 - 573?

Back

161

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the result of 231 - 178?

Back

53

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the result of 456 - 268?

Back

188

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the result of 900 - 749?

Back

151

Front

What is the result of 879 - 96?

Back

783

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

When do you need to regroup in subtraction?

Back

You need to regroup in subtraction when the digit in the top number is smaller than the digit in the bottom number in any column.

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

Front

What is the first step in subtracting 734 - 573?

Back

Look at the ones place: 4 - 3 = 1, then move to the tens place.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What do you do if you cannot subtract a digit in a column?

Back

You borrow from the next column to the left.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2