2-Digit Subtraction with Regrouping

Front

What is 2-Digit Subtraction with Regrouping?

Back

It is a method used to subtract two-digit numbers where you need to borrow from the next higher place value when the top digit is smaller than the bottom digit.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What does 'regrouping' mean in subtraction?

Back

Regrouping means rearranging the numbers to make subtraction easier, often by borrowing from the next place value.

Tags

CCSS.7.NS.A.1C

Front

What is the first step in subtracting 82 - 7?

Back

Look at the ones place: 2 - 7 cannot be done, so you need to regroup.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you regroup when subtracting 82 - 7?

Back

You borrow 1 from the 8 in the tens place, making it 7, and add 10 to the 2 in the ones place, making it 12.

Tags

CCSS.2.NBT.B.6

Front

What is 12 - 7?

Back

12 - 7 = 5.

Tags

CCSS.2.OA.A.1

Front

What is the final answer for 82 - 7 after regrouping?

Back

The final answer is 75.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is 54 - 7?

Back

54 - 7 = 47.

Tags

CCSS.2.OA.A.1

Front

What is the process to solve 72 - 3?

Back

Since 2 is greater than 3, you can subtract directly: 72 - 3 = 69.

Tags

CCSS.2.NBT.B.5

Front

What is 79 - 9?

Back

79 - 9 = 70.

Tags

CCSS.2.NBT.B.5

Front

What is 91 - 8?

Back

91 - 8 = 83.

Tags

CCSS.2.OA.A.1