Mastering Double Digit Subtraction with Regrouping

Front

What is double-digit subtraction?

Back

Double-digit subtraction involves subtracting numbers that have two digits, requiring an understanding of place value and sometimes regrouping.

Tags

CCSS.7.NS.A.1C

Front

What does regrouping mean 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 column.

Tags

CCSS.7.NS.A.1C

Front

How do you subtract 29 from 64 using regrouping?

Back

To subtract 29 from 64, you regroup by borrowing 1 from the 6 in the tens place, making it 5, and adding 10 to the 4 in the ones place, making it 14. Then, subtract: 14 - 9 = 5 and 5 - 2 = 3, resulting in 35.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the result of 82 - 54?

Back

The result of 82 - 54 is 28.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you solve 93 - 57 using regrouping?

Back

To solve 93 - 57, you need to regroup. Borrow 1 from the 9 in the tens place, making it 8, and add 10 to the 3 in the ones place, making it 13. Then, subtract: 13 - 7 = 6 and 8 - 5 = 3, resulting in 36.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the importance of place value in double-digit subtraction?

Back

Place value is crucial in double-digit subtraction as it helps determine which digits to subtract and whether regrouping is necessary.

Tags

CCSS.5.NBT.B.7

Front

What is the result of 65 - 38?

Back

The result of 65 - 38 is 27.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

Explain the process of borrowing in subtraction.

Back

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

Tags

CCSS.7.NS.A.1C

Front

What is the result of 73 - 45?

Back

The result of 73 - 45 is 28.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How can you check your subtraction answer?

Back

You can check your subtraction answer by adding the result to the number you subtracted from; if it equals the original number, your answer is correct.

Tags

CCSS.1.OA.A.1