2 digit subtraction with regrouping

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is the process of borrowing from the next higher place value when the top digit is smaller than the bottom digit in a subtraction problem.

Tags

CCSS.7.NS.A.1C

Front

How do you subtract two-digit numbers with regrouping?

Back

To subtract two-digit numbers with regrouping, start from the rightmost digit. If the top digit is smaller than the bottom digit, borrow from the next left digit, adjust the digits accordingly, and then perform the subtraction.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the difference between 72 and 42?

Back

The difference between 72 and 42 is 30.

Tags

CCSS.7.NS.A.1C

Front

What is the difference between 52 and 25?

Back

The difference between 52 and 25 is 27.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the difference between 71 and 45?

Back

The difference between 71 and 45 is 26.

Tags

CCSS.7.NS.A.1C

Front

What is the difference between 80 and 51?

Back

The difference between 80 and 51 is 29.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What does it mean to find the difference in subtraction?

Back

Finding the difference in subtraction means calculating how much one number is less than another number.

Tags

CCSS.1.OA.A.1

Front

What is the first step in subtracting 72 - 42?

Back

The first step is to look at the ones place: 2 (from 72) minus 2 (from 42) equals 0.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What do you do if you cannot subtract the digits in the ones place?

Back

If you cannot subtract the digits in the ones place, you need to regroup by borrowing from the tens place.

Tags

CCSS.2.NBT.B.7

Front

What is the result of 29 - 0?

Back

The result of 29 - 0 is 29.

Tags

CCSS.2.NBT.B.5