Addition and subtraction with regrouping

Front

What is regrouping in addition?

Back

Regrouping in addition is the process of carrying over a value from one column to the next when the sum of a column exceeds 9.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is the process of borrowing from the next column when the top digit is smaller than the bottom digit in a column.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you add two numbers with regrouping?

Back

To add two numbers with regrouping, start from the rightmost column, add the digits, and if the sum exceeds 9, carry over the extra value to the next column.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

How do you subtract two numbers with regrouping?

Back

To subtract two numbers with regrouping, start from the rightmost column, subtract the digits, and if the top digit is smaller than the bottom digit, borrow from the next column.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 281 and 499?

Back

The sum of 281 and 499 is 780.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the difference between 92 and 45?

Back

The difference between 92 and 45 is 47.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 25 and 19?

Back

The sum of 25 and 19 is 44.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the difference between 727 and 349?

Back

The difference between 727 and 349 is 378.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the difference between 200 and 26?

Back

The difference between 200 and 26 is 174.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the first step in solving an addition problem with regrouping?

Back

The first step is to align the numbers by their place values (ones, tens, hundreds) and start adding from the rightmost column.

Tags

CCSS.2.NBT.B.7