Subtraction with regrouping

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another. It shows how many are left after some have been taken away.

Tags

CCSS.2.NBT.B.7

Front

What does regrouping mean in subtraction?

Back

Regrouping in subtraction means rearranging the numbers to make it easier to subtract, especially when the top number is smaller than the bottom number in a column.

Tags

CCSS.7.NS.A.1C

Front

Solve: 73 - 27 = ?

Back

46

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

Solve: 45 - 36 = ?

Back

9

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

Solve: 409 - 319 = ?

Back

90

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

If John has 65 erasers and 29 pencils, how many does he have in total?

Back

94

Tags

CCSS.2.NBT.B.6

Front

Solve: 803 - 458 = ?

Back

345

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the first step in subtraction with regrouping?

Back

The first step is to look at the digits in each column, starting from the right.

Tags

CCSS.7.NS.A.1C

Front

What do you do if the top digit is smaller than the bottom digit in a column?

Back

You regroup by borrowing 1 from the next left column.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is borrowing in subtraction?

Back

Borrowing is when you take 1 from the next column to help subtract a smaller number from a larger number.

Tags

CCSS.7.NS.A.1C