2 Digit Addition with Regrouping

Front

What is the process of 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 10.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

How do you add two-digit numbers without regrouping?

Back

To add two-digit numbers without regrouping, simply add the digits in each column separately, ensuring that the sum of each column is less than 10.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 65 and 29?

Back

The sum of 65 and 29 is 94.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 73 and 18?

Back

The sum of 73 and 18 is 91.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 27 and 56?

Back

The sum of 27 and 56 is 83.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 73 and 19?

Back

The sum of 73 and 19 is 92.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the sum of 56 and 28?

Back

The sum of 56 and 28 is 84.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What should you do if the sum of the ones column is 10 or more?

Back

If the sum of the ones column is 10 or more, you regroup by carrying over 1 to the tens column.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the first step in adding two-digit numbers?

Back

The first step in adding two-digit numbers is to align the numbers by their place values (ones under ones, tens under tens).

Tags

CCSS.2.NBT.B.6

Front

How do you check your addition for accuracy?

Back

To check your addition for accuracy, you can add the numbers again or use the inverse operation (subtraction) to verify the result.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2