3-Digit Subtraction with Regrouping

Front

What is 3-digit subtraction?

Back

3-digit subtraction involves subtracting numbers that have three digits, such as 456 - 123.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What does regrouping mean in subtraction?

Back

Regrouping in subtraction means borrowing from the next higher place value when the top digit is smaller than the bottom digit.

Tags

CCSS.7.NS.A.1C

Front

How do you subtract 689 from 954?

Back

To subtract 689 from 954, align the numbers and subtract each column, borrowing if necessary. The answer is 265.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the difference between 856 and 437?

Back

The difference between 856 and 437 is 419.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the result of 543 - 298?

Back

The result of 543 - 298 is 245.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the result of 843 - 529?

Back

The result of 843 - 529 is 314.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

How do you solve 965 - 428?

Back

To solve 965 - 428, align the numbers and subtract each column. The answer is 537.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is borrowing in subtraction?

Back

Borrowing is taking 1 from the next higher place value to help subtract when the top digit is smaller.

Tags

CCSS.7.NS.A.1C

Front

What is the first step in 3-digit subtraction?

Back

The first step is to align the numbers by their place values: hundreds, tens, and ones.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What do you do if you can't subtract a digit?

Back

If you can't subtract a digit, you need to borrow from the next column to the left.

Tags

CCSS.5.NBT.B.7