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 given place value, requiring borrowing from the next higher place value.

Tags

CCSS.7.NS.A.1C

Front

How do you perform subtraction with regrouping?

Back

1. Start from the rightmost digit. 2. If the top digit is smaller than the bottom digit, borrow from the next left digit. 3. Subtract the bottom digit from the top digit. 4. Repeat for each place value.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the result of 46 - 29?

Back

The result is 17.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the result of 67 - 49?

Back

The result is 18.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the result of 86 - 42?

Back

The result is 44.

Tags

CCSS.2.NBT.B.5

Front

What is the result of 25 - 7?

Back

The result is 18.

Tags

CCSS.2.OA.A.1

Front

What is the result of 64 - 19?

Back

The result is 45.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What does it mean to 'borrow' in subtraction?

Back

Borrowing in subtraction means taking 1 from the next higher place value to make the current digit larger, allowing for the subtraction to be performed.

Tags

CCSS.5.NBT.B.7

Front

Why is regrouping necessary in subtraction?

Back

Regrouping is necessary when the digit in the minuend (top number) is smaller than the digit in the subtrahend (bottom number) in any place value.

Tags

CCSS.5.NBT.B.7

Front

What is the minuend in a subtraction problem?

Back

The minuend is the number from which another number (the subtrahend) is subtracted.

Tags

CCSS.1.OA.A.1