2-Digit Subtraction with Regrouping

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is the process of borrowing from a 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 without regrouping?

Back

To subtract two-digit numbers without regrouping, simply subtract the digits in each place value (tens and ones) directly if the top digit is larger than or equal to the bottom digit.

Tags

CCSS.2.NBT.B.7

Front

What is the first step in solving a two-digit subtraction problem with regrouping?

Back

The first step is to check if the ones place of the top number is smaller than the ones place of the bottom number. If it is, you will need to regroup.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

In the problem 71 - 49, how do you handle the ones place?

Back

In 71 - 49, you cannot subtract 9 from 1, so you regroup by borrowing 1 from the tens place, making it 11 - 9.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the result of 71 - 49 after regrouping?

Back

The result of 71 - 49 after regrouping is 22.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you subtract 65 - 29 using regrouping?

Back

In 65 - 29, you need to regroup because you cannot subtract 9 from 5. Borrow 1 from the tens place, making it 15 - 9, which equals 6. Then subtract the tens: 5 - 2 equals 3.

Tags

CCSS.7.NS.A.1C

Front

What is the answer to 65 - 29?

Back

The answer to 65 - 29 is 36.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

Explain the process of subtracting 95 - 73 with regrouping.

Back

In 95 - 73, you cannot subtract 3 from 5, so you regroup by borrowing from the tens place. This makes it 15 - 3 = 12 for the ones place, and then 8 - 7 = 1 for the tens place, resulting in 22.

Tags

CCSS.7.NS.A.1C

Front

What is the result of 95 - 73?

Back

The result of 95 - 73 is 22.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you solve 50 - 32 using regrouping?

Back

In 50 - 32, you cannot subtract 2 from 0, so you regroup by borrowing from the tens place, making it 10 - 2 = 8 for the ones place, and then 4 - 3 = 1 for the tens place, resulting in 18.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2